[英文]片语

In this industry, you really need to keep ____ if you don't want to be caught off guard ..

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In this industry, you really need to keep ____ if you don't want to be caught off guard. 措不及防
keep your head up 保持抬头→抬头挺胸 / 别垂头丧气 / 打起精神来
an arm and a leg 很大的代价/一大笔钱
tooth and nail  拼命地
in the stars


答案应该是第一个吧=..=

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