1.
The old man is not as active as he was.
这老头儿不如以前行动方便了。
2.
The Church of England is not the power in the land it used to be.
英国教会在国内不如以前那样得势了。
3.
My hearing is not as keen as it used to be.
我的听觉不如以前那么灵敏。
4.
He studies English less hard than before.
他学习英语不如以前那样努力。
5.
rake the soil(smooth),eg before planting seeds
把地耙平（如在播种以前）.
6.
Earlier, he had made decisions with almost sportive ease; now, he had to force them out of his exhausted brain.
以前，他做决定如同儿戏，如今，绞尽脑汁，好不容易。
7.
If he had tried harder, he could have topped his class.
假如他以前用功些，他会在班里（绩）列前茅的。
8.
As it turned out, he is more prosperous than before.
结果，他比以前更加称心如意了。
9.
the act of moving along swiftly (as before a gale).
急忙移动的动作（例如大风以前）。
10.
If we wire into this job we shall be finished by half past ten.
如果我们抓紧干，１０点半前就可以干完。
11.
If we press ahead, we can get home before dark.
如果我们加紧赶路，天黑前可以到家。
12.
To strike(a tennis ball, for example)before it touches the ground.
截击在球触地以前击（如网球）
13.
be a pale reflection of one's former self,eg after an illness
与自己以前相比,面容憔悴（如病后）.
14.
I never saw such an exhibition of bad manners before.
我以前从未见过如此无礼的举止。
15.
If possible, please let me know by this evening.
如果可能的话，请在今晚以前告诉我。
16.
She' s back to her former self again, eg after an illness.
她又恢复了以前的样子（如病後）.
17.
What's Chinese women team's previous best result?
中国女篮以前最好的成绩如何？
18.
Not if you leave before 00 p.m.
如果您在下午5点以前离开就不用。