I think he must knew the topic beforehand and got time to prepare in advance.
我想他一定一早就知道题目了吧并且已经事先有时间准备好答案了。
Have an arrangement beforehand: All should have plans in advance to the items which you must do every day. You will make a big mistake if you do them at random.
事先要有安排：每天该做的事，应有事先的计划，否则随便的做，会犯下严重的错误。
But the precondition is that the creditor Banks should not press too hard for debt repayment beforehand or in advance. If you press too hard, they would have no choice but to apply for bankruptcy.
但前提是各个债权银行不要逼债，不要逼它们提前偿还贷款，你逼急了，它就只是好破产。
If we are warned beforehand that something is going to happen we are able to take all necessary steps in advance.
如果我们事先得到某事将要发生的警告，我们就能够提前采取一切必要的措施。
If we are warned beforehand that something is going to happen we are able to take all necessary steps in advance.
如果我们事先得到某事将要发生的警告，我们就能够提前采取一切必要的措施。
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