我没时间来准备这次会议，我只能临场发挥了。
I don't know what to say when he comes, just play it by ear.
玛丽：这样的问题事先通常无法准备，只能临场发挥。
Mary: In this case, you should first keep calm and normal to the face.
这就对日程行为，判断和一般性的临场发挥也会产生不利的影响。
This has an adverse effect on the behavior, judgment and general performance.
这就对日程行为，判断和一般性的临场发挥也会产生不利的影响。
This has an adverse effect on the behavior, judgment and general performance.
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