Tip is allowed but not required.
可以给小费但没有要求给。
The release is recommended, but not required.
这个版本是建议，但并不是必需的。
Knowledge of any of these is helpful, but not required.
了解这些当然很有帮助，但也不是必需的。
Some spoken English is preferred, but not required.
一些英语口语是首选，但不是必需的。
Knowledge of Web design is helpful, but not required.
如果您懂得Web设计知识将很有帮助，但这并不是必须的。
Some experience with Eclipse is helpful, but not required.
具有一些Eclipse方面的经验会有所帮助，但不是必需的。
Extra reading is permitted but not required for this paper.
这篇论文容许其他阅读资料，但并不是必需。
We've all done work, paid or not, that required skill but was enjoyable.
我们都做过虽然需要技能但令人愉快的工作，不管有没有报酬。
I'm not a huge fan of this method, but sometimes brute force is required.
总体上鄙人不常用此方法，但有时死办法也是必须的。
But, it should not be required for survival.
但是，它不应该是为了生存的需要。
Often the standard will say a compiler may do something but is not required to.
标准通常会说编译器可以做某些事情但不强制这样去做。
It is not strictly required, but a custom icon looks nice.
这一点并没有严格的要求，但是定制的图标看起来要好一些。
A hard disk is not required but can be used to host the operating system.
磁盘并非必要，但可以用来托管操作系统。
Orders are on site but not checked, and no password is required.
命令在网站上提交但是不会被检查，也不需要密码。
Other information can help the performance of Hibernate but is not required.
其他信息也有助于提高 Hibernate的性能，但不是必需的。
Jailbreaking will really let you go all the way, but it's definitely not required.
越狱，是个办法，但不是唯一。
The eventsQueue attribute is not required, but I recommend you treat it as such.
eventsQueue属性不是必需的，但是我建议您也同样对待。
But in fact they are not as capable as required.
但是事实上，他们还没有达到要求。
An alias is not required, but can be helpful.
别名并不需要，但也可以是有益的。
But perhaps a man is not required to bury himself.
但是人也许是用不到安葬自己的。
Most management analysts usually have a bachelor's degree, but this is not required.
大多管理分析师拥有学士学位，但这并不是必要条件。
Prayer is not required, but the desire on the soul.
祈祷不是要求，而是灵魂上的渴望。
This is probably a good idea, but it's not required.
这可能是一个好主意，但它不是必需的。
The LAME had the required paper work, but not the necessary equipment.
LAME携带了必要的工卡，但没有准备必要的设备。
But you would not listen. So now also his blood is required.
只是你们不肯听，所以流他血的罪现在向我们追讨。
A computer science degree would be very helpful, but is not required.
有电脑科学学位会有帮助，但是不是必要的。
A computer science degree would be very helpful, but is not required.
有电脑科学学位会有帮助，但是不是必要的。
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