牢牢掌控美国航空业是这一联合关注的焦点。

This is what concerns the unions that have a grip on America’s airlines.

youdao

牢牢掌控美国航空业是这一联合关注的焦点。

This is what concerns the unions that have a grip on America's airlines.

youdao

牢牢掌控美国航空业是这一联合关注的焦点。

This is what concerns the unions that have a grip on America's airlines.

youdao