中國有BTA，美國有GAFA

GAFA is the corporations Google, Apple, Facebook, and Amazon viewed as a group, particularly one that wields significant power and influence in modern affairs.

GAFA是指谷歌、蘋果、臉書和亞馬遜四大巨頭，這四家公司勢力極大，而且對現(xiàn)代事物有著重要影響。

The four so-called "Internet giants," also known as GAFA (Google, Apple, Facebook, Amazon), now have a total revenue equivalent to Denmark’s entire GDP at around $316 billion.

四大互聯(lián)網(wǎng)巨頭GAFA(谷歌、蘋果、臉書、亞馬遜)目前總收入已達3160億美元，相當于丹麥的GDP總額。