警戒jǐng jiè
beon the alert against; guard against; keep a close watch on
先遣xiān qiǎn
sent in advance
原声例句
芭比的生活实录
I was sent on a mission to be very honest with you, by everyone.
每个人都派我去执行一个任务,就是要对你们非常诚实。
99%不为人知的故事
And as part of her resistance work in 1940, she's sent on a mission to Vienna where she's tasked with gathering anti-fascist literature so it can be reproduced and distributed back in Turkey.