不必

Exp:You needn't look at me like that.

你不必那样瞧着我。

I'm quite satisfied with your explanation , so there is no need to expand on it.

我对你的解释非常满意，所以不必再详细阐述了。

In this thesis,the influence of thermal expansional coefficient on the self-lubricating ability of the sweating composites at high temperature is investigated based on the prediction of composites thermal expansional coefficient.

并通过实验验证了该算式结果的准确性，由于该计算式形式简单，因此具有很好的工程应用性；同时，由于该算式不必区分增强相和基体相，这在一些无法区分二者的情况下，保证了结果的准确性。

This, he said, would allow them to "act boldly and expeditiously without having to go through a lengthy or even painful approval process."

他说，这将使它们"不必经过冗长甚至痛苦的审批程序而大胆、快速的行动。"

You don't need to expend that much time in watching TV.

你不必花那么多时间在看电视上。

Since all javascript syntax functions derive themselves from the base-class function, it is unnecessary to provide an explicit reference to the self-object: from anywhere within an ECMA-style script, you can obtain a reference to the self-object through the keyword "this", which is the same as the "me" keyword, but with minor differences.

因为所有的javascript语法中函数都是从基础类函数派生而来，它们不必显示的声明指向自己的对象：在ECMA风格脚本的任何地方，你都可以通过关键字"this"获得指向当前对象自己的引用，就象关键字"me"的功能一样，只是稍有不同。

I won't have to worry about losing my quickness or any of my explosiveness.

我不必去担心会失去我的速度或任何爆发力。

Particularized conversational implication is the actual meaning or the intention which the expresser must express, while the pragmatic presupposition is the assumptions on the context of the words concerning both the expresser's and the audience, also is the felicity conditions which the implementation of the expresser speech act must satisfy.

特殊会话隐涵是发话人所要表达的实际意思或意图，语用预设是发话人对他的说话语境和受话人的认知语境的一种假定，是实施其言语行为所必须满足的适切条件；分析、推导特殊会话隐涵必须借助上下文语境，而分析、推导语用预设有时不必借助上下文语境。

Don/t take his word so seriously,it just be eyewash.

他的话只不过是吓人的空话，你不必太认真了。

Your allure will be fabulously strong, so you won't have to try too hard to meet anyone.

你的诱惑将会传说强壮，因此，你将不必太努力地试遇到任何人。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。