I wish we'd known about it beforehand.
要是我们预先知道这事就好了。
How could she tell beforehand that I was going to go out?
她如何预先知道我将出门的？
I have to say in her defence that she knew nothing about it beforehand.
我得为她说句话，她事先并不知道此事。
It is reasonable to assume that he knew beforehand that this would happen.
有理由认为他事先就知道会发生这样的事。
She is always beforehand with the rent.
她总是预先付房租。
Actually I meant to notify you beforehand.
实际上我是想事先通知你的。
You must have some preparation beforehand.
你必须事先做些准备。
Strategies to be used in each can be planned beforehand.
每一种要使用的策略都可以事先规划好。
As a further precaution, all the crows had been fed beforehand.
作为进一步的预防措施，所有的乌鸦都预先喂过食。
It had been arranged beforehand.
一切都事先料理好了。
We congratulate you beforehand on your success.
我们预祝你事业成功。
If I'd known this beforehand, I would not have gone back.
早知如此，我就不回去了。
No one expected this beforehand.
没人事先预料到这事。
Remind us frequently beforehand.
事先还要经常提醒我们。
I had made preparations beforehand.
我预先作了准备。
She was my best friend beforehand.
她之前是我最好的朋友。
He should have told you beforehand.
他应当早点告知你的。
I should have called you beforehand.
我本应该提前给你打电话的。
The game is over if they die beforehand.
如果他们先死了，那游戏就结束了。
A schedule of energy supply is made beforehand.
事先人们会制定好一份电力供应表。
We need to make precise estimate beforehand.
我们需要事先作出准确的估计。
Had parents been training their children beforehand?
是不是父母事前训练过孩子？
Know beforehand what you will do if equipment fails.
一定要事先想好，如果设备不能用的话怎么办。
We need to make an accurate estimate beforehand.
我们需要事先作出准确的估计。
To be wise is to think of everything beforehand.
聪明的人就是事前考虑一切事情。
Please inform me of your arrival time beforehand.
请事先通知我你抵达的时间。
"Go ahead," he said; "tell me about them beforehand."
“讲吧，”他说，“先给我介绍介绍。”
To avoid this, make a clear plan of action beforehand.
如果要避免干扰，行动之前就应该要制定一个清晰的计划。
To avoid this, make a clear plan of action beforehand.
如果要避免干扰，行动之前就应该要制定一个清晰的计划。
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