必须的

Therefore, considerable body strength and agility is needed.

因此，充足的体力和灵活的身体是必须的。

We found that basolateral amygdaloid PKC signaling pathway was involved in retrieval of the cocaine-CPP memory.

我们发现杏仁核侧底核的PKC 讯息传递路径的活化是提取古柯碱制约场地偏好记忆所必须的。

Results Anxiety neurosis was often accompanied with apprehensiveness,depression,personal relationship sensitivity,compulsion a...

结论焦虑症的治疗药物干预是必须的，心理加药物治疗是焦虑症治疗的最佳方案。

It can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support life.

通过取代空气中的氧，使之下降到维持生命所必须的水平以下，它可以成为简单的窒息物。

Although helium is nontoxic and inert, it can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support

尽管氦无毒且不活泼，通过取代空气中的氧，使之下降到维持生命所必须的水平以下，它可以成为简单的窒息物。

Although helium is nontoxic and inert, it can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support life.

尽管氦无毒且不活泼，通过取代空气中的氧，使之下降到维持生命所必须的水平以下，它可以成为简单的窒息物。

Although nitrogen is non-toxic and inert, it can act as a simple asphyxiant by displacing the oxygen in air to levels below that required to support

尽管氮无毒且很大程度上不活泼，通过取代空气中的氧，使之下降到维持生命所必须的水平以下，它可以成为简单的窒息物。

While not required, it's a good idea to back up your custom kernel .deb. Copy it to a secure undisclosed location.

这并不是必须的，但备份你的定制内核。deb是个好主意，复制它到一个安全之处。

Comparative method will ofen used in this course.

比较的方法是必须的。

Burke says students often think of language learning as dull, but it doesn't have to be.

Burks说学生经常认为语言学习是枯燥的，但不是必须的。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。