随机应变

You can’t really prepare for the questions the interviewer will ask—you’ll just have to play it by ear,I’m afraid.

你没法准备面试官要问的问题，恐怕只能应变了。

In dealing with that unpredictable man, you simply cannot follow a prearranged plan, you have to play it by ear.

和那不定的人打交道, 你简直无法按预定计划行事, 只好应变。

Mr. Smith is a most suitable candidate for such negotiator since his tact and quickness of mind are equal to the occasion.

这样的谈判史密斯先生是最合适的人选, 他智, 应变。