The "Black Lives Matter" movement in the United States is often translated into Chinese as "Black lives are also important." The word "also" can better express the core point of this movement: in the United States, especially in the U.S. criminal justice system, although all lives are equally important, black lives are not equally respected and protected.

      Floyd's death and the protests it sparked have made the call for "Black Lives Matter" a focus of American society, and the White House, Congress, and many state and local governments have embarked on police reform. Reform proposals that were previously considered unrealistic, radical, or even extreme, such as "demilitarizing" police departments, removing police operating funds, and even disbanding police departments, have at least become a topic of serious discussion in American society, although mainstream opinion still considers them radical. A report in the New York Times stated: "Never before in the history of modern polls has there been such a broad consensus in the United States on the prevalence of racism in police enforcement and society as a whole."

These three words were first posted as a hashtag on Facebook by three black community workers in July 2013. At that time, George Zimmerman, the police officer who shot and killed 17-year-old African American teenager Trayvon Martin in Florida in February 2012, was acquitted, sparking strong controversy. Zimmerman is actually of white and Hispanic descent, but this does not affect the views of these civil rights activists - this verdict, as well as similar lenient verdicts after tragedies caused by excessive law enforcement by white police against black people, is a devaluation of black lives. They believe that there is a law enforcement culture in the US police and criminal justice departments that does not believe that black lives are worth protecting. The following year, in August 2014, in Ferguson, Missouri, 18-year-old African American Michael Brown was shot and killed by a white police officer while unarmed, triggering protests and riots that lasted for many days. "Black Lives Matter" organized its first protest demonstration in Ferguson through social media platforms and quickly became famous throughout the United States. In 2014, the American Dialect Society selected the hashtag "Black Lives Matter" as the word of the year; in August 2015, the Democratic National Committee passed a resolution supporting the "Black Lives Matter" movement. As of September 2016, "Black Lives Matter" has been retweeted more than 30 million times on Twitter. From 2014 to 2016, the "Black Lives Matter" movement established more than 30 local branches across the United States and organized and participated in countless protests.

The official introduction of the "Black Lives Matter" website is: "Black Lives Matter Foundation, Inc." is a global organization located in the United States, the United Kingdom and Canada. Its mission is to eradicate white supremacy, intervene in the violence imposed by the state and law enforcement on the black community, and believe that in order to win broad support, "it is necessary to transcend the narrow nationalism that is prevalent in the black community." Therefore, it is no problem to understand "Black Lives Matter" as a topic tag, a protest slogan, an online platform, or a social movement. As for considering it as a political group, it is more of a loose online platform than a traditional political organization. It has guiding principles but no hierarchical structure, and it does not have a charismatic leader like Martin Luther King like the older generation of American civil rights movements.

Since the rise of the "Black Lives Matter" movement, various hashtags with the same phrase have emerged, such as "All Lives Matter", "Police Lives Matter", "White Lives Matter", etc. These hashtags themselves have already shown an attitude of disapproval of the movement. In this regard, former US President Obama once explained: "I don't think the organizers used the phrase 'Black Lives Matter' to say that other people's lives are not important... What they want to express is that there is a specific problem in the African American community that does not occur in other ethnic communities."

Data from Civiqs, an online survey research company, shows that after Floyd's death triggered a wave of protests, American voters who supported the "Black Lives Matter" movement were 28 percentage points higher than those who did not support it, compared with only 17 percentage points higher before. A Monmouth University poll found that 76% of Americans believe that racism and discrimination are a "big problem", up 26 percentage points from 2015; 78% of voters believe that the anger behind the demonstrations is completely reasonable or has some reason. Today, most Americans believe that there is a lot of discrimination against black people in American society and that police are more likely to use lethal force against African Americans. When the "Black Lives Matter" movement began in 2013, polls showed that most voters disagreed with these statements.

Americans often lament that racism is like a cancer that torments the American soul. However, there is no standard or single answer to whether this cancer can be cured or what the cure is.