at sea 1. 在海上；在海上航行 be buried at sea 葬身海中 spend three months at sea 在海上航行3个月 2. 〈口〉茫然，困惑；不知所措 I'm (all) at sea when people talk about abstract painting. 当人们谈论抽象派绘画时，我不知所云。 The job was new to him,and for a few days he was at sea. 这项工作对他来说是新的，有几天他不知怎么干才好。 3. 弄错；入歧途 You're altogether at sea in your guesses. 你猜得完全离谱了。