A COLLECTION OF GOOD WORDS
事先
Beforehand
I always avoid prophesying beforehand, because it is a much better policy to prophesy after the event has already taken place.
我总是避免事先预言，因为在事情已经发生之后再预言是更好的策略。
Even if you're improvising, the fact that beforehand you know certain things will work helps you make those improvisations successful. It really helps to have a certain amount of knowledge about musical structure.
即使你是即兴创作，你事先知道某些事情会起作用，这一事实会帮助你使即兴创作成功。对音乐结构有一定的了解真的很有帮助。