凯撒率领他的军团穿越了高卢地区。

Caesar led his ___legion through the region of Gaul.

社交媒体上有无数条关于这场比赛的评论。

There was a ___legion of comments about the match on social media.

他在外籍军团服役期间学到了很多军事技能。

He acquired many military skills during his service in the Foreign ___Legion.