必须的

Grab bag means that you buy something to put in a bag, which will be given out in the party.

可以买一份不超过20的礼物，dinner上大家交换，但这不是必须的

Classification to the game that a lot of delegates advocate, plum very firm ground says 甦: This is must!

对于很多代表倡导的游戏分级，李甦很坚决地说：这是必须的！

Of course, the choice of a superb performance graphics workstations, hardware quality assurance and compatibility and stability are necessary.

当然，选择一套性能超群的图形工作站，硬件质量保证、兼容性、稳定性等方面都是必须的。

I believe that in the new year, in 2007, I have things I have to be harvesting.

我相信在新的一年里，在2007，我会收获到我所必须的东西。

We must have o 的 ur man in Havana, you know.

你知道，哈瓦那必须要有我们的人。

Not all are of immediate interest,but you might have a need for some of them, someday.

不是所有的选项都是必须的，但是你可能有一天会需要用到一些。

But risks must be taken because the greatest hazard in life is to risk nothing.

但是，冒险是必须的，因为生活中最大的危险就是不冒任何风险

It's necessary for me to heighten the level of my handwriting.

提高我的书写水平是必须的。

I've got the obligatory Hendrix perm.

我得到了必须的Hendrix式的卷发

This is mandatory to maintain balance with the moderatelyangulated hindquarters.

这是必须的，与有棱角的后躯保持平衡。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。