必不可少

Therefore, establishing of united procedure and standard, consummating the system is very necessary and important.

因此，统一的程序、标准的制订，制度的完善势在必行，那么，相关的基础理论的研究也就必不可少。

Both countries need to learn that, to prevent the fast train derailing, research standards are as essential as research know-how.

两个国家都需要学到，要防止快速列车出轨，科研规范和科研技巧一样是必不可少的。

A Pick-axe, a Shovel, and a Wheel-barrow or Basket, so I desisted from my Work, and began to consider how to supply that Want and make me some Tools; as for a Pickaxe, I made use of the Iron Crows, which were proper enough, tho' heavy; but the next thing was a Shovel or Spade, this was so absolutely necessary, that indeed I could do nothing effectually without it, but what kind of one to make I knew not.

我就先不挖洞，而是考虑制造一些必不可少的工具。我用起货钩代替鹤嘴锄，还凑合用，只是重了点。此外，还需要一把铲子，这是挖土的重要工具，没有铲子，什么事也别想做，可我不知道怎样才能做把铲子。

Glutathione is an amino acid like compound that is essential to the detoxifying process.

谷胱甘肽是一种氨基酸一样化合物，是必不可少的解毒过程。

Large congenital neoplasms presenting with attendant bleeding diatheses must be rapidly and accurately diagnosed with both a biopsy-proven tissue diagnosis and a hematologic characterization of the nature of the coagulopathy.

对大的先天肿瘤伴随出血性疾病需要进行迅速、精确的诊断，对活组织切片的病理诊断和对凝血异常本质上的血液学特性描述是必不可少的。

The former is the basis and the indispensable assumption for the latter; for where God Himself erects His throne, there must be found a fitting and becoming adornment.

前者是基础和必不可少的假设，对于后者，因为那里天主自己的屏障，他的宝座，就必须找到一个最合适，并成为装饰品。

The former is the basis and the indispensable assumption for the latter; for where God Himself erects His throne, there must be found a fitting and becoming adornment.

前者是基础和必不可少的假设，对於后者，因为那里天主自己的屏障，他的宝座，就必须找到一个最合适，并成为装饰品。

Exercise is essential for a healthy metabolism, proper energy circulation, and the expelling of cellular wastes.

锻炼对健康的新陈代谢、恰当的能量循环和体内废物的排除是必不可少的。

Don't forget I love experimenting. I couldn't get along without it.

别忘了我喜欢尝试，它在我的成长中必不可少。

This technology extends the customer relationship marketing that is essential in business.

这项技术的延伸，是必不可少的客户关系营销业务。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。