Bls
abbr. （美）劳工统计局（Bureau of Labor Statistics）；文科学士（Bachelor of Liberal Studies）
🗣️ 情景例句
Lots of wonderful memories.
留下的是许多美好的回忆。
I'd like to change this ticket to the first class.
我想把这张票换成头等车。
and should never be added to drinking water.
永远不能掺入饮用水。