1.
Please compose yourself; there's no need to get excited!
请镇静, 不必激动!
2.
No need to go yet, it's still early.
不必走，还早着呢。
3.
Then he reflected that wouldn't be necessary.
一转念，这事不必。
4.
I am not bound to be timid and conventional.
我不必有什么顾虑，也不必随波逐流。
5.
We must use the computer when its usage is required, but it is best that we do not turn to it when it is not necessary to do so.
该用电脑时必须用，不必用时最好不用。
6.
You don't have to be thin, naturally blond, super-successful, socially connected, knowledgeable about politics or even particularly charming to find it.
你不必为了爱情而减肥，不必天生白肤金发，不必善于交际，不必精于政事，甚至不必光彩照人。
7.
I won't have to stand still!
我不必站着不动了！
8.
Don' t stick at trifles.
对小事情不必犹豫不决。
9.
You haven't got to go to the office today,have you?
你今天不必上班,对不对?
10.
There's no need to lift up your voice, I'm not deaf.
你不必这么高声,我不聋。
11.
Don't be uneasy about the consequence.
不必为后果忧虑不安。
12.
There's no fear that he might transfer his loyalty from the party.
不必担心他会对党不忠。
13.
It won't rain: you can leave your umbrella behind.
不会下雨, 你不必带伞了.
14.
Civilization is a limitless multiplication of unnecessary necessities.
文明是不必要的必需品的无限增加。
15.
major programmes not requiring revisions
不必修订的主要方案
16.
needless work, trouble, worry
不必要的工作、 麻烦、 烦恼.
17.
and need not worry that your cat will run out of the bag.
而不必担心会泄露秘密。
18.
Of necessity;inevitably.
必然必需地，不可避免地