Indeed, it may be for any of the factors, physical as well as biotic, that are essential for organisms.

事实上，竞争对象可能是生命体所必须的任何生物或非生物因素。

youdao

As a rule, it is essential that the poor's productive capabilities be mobilized and the conditions for developing these human resources be improved.

通常，必须调动穷人的生产能力，改善开发这些人力资源的条件。

youdao

It is, therefore, essential that a banksman be appointed to warn the operator of hazards that cannot be seen from the operator's position.

重型运土设备使用时，操作人员只能看到有限的区域，因此，必须指派矿口监工随时警告操作人员在操作位置上无法发现的危险。

youdao

Because it's absolutely essential that the political side should be going which is to create counter-balance against Baitullah Mehsud."

VOA: standard.2009.06.18

So if we want belief in a soul to help us leave open the door to the possibility that I survive the destruction of my body, it had better not be that the body is an essential part of me.

因此如果我们相信灵魂,可以帮助我们在幸免一死的,问题上打开一扇窗,那么必须是肉体不是我的重要组成部分

耶鲁公开课 - 死亡课程节选

House Speaker Nancy Pelosi says she believes it is essential that a government-sponsored public option be part of any bill, if it is to be passed by the House.

VOA: standard.2009.09.09

There are many Web sites that do undertake this mission, but it will be essential that there is continued and expanded support for reporting as the metro newspapers slowly vanish.

CNN: Commentary: News can outlast newspapers

Going forward, it will be essential that the universal rights of the Egyptian people be respected.

WHITEHOUSE: Our Top Stories

In business, this way of thinking is essential to success, and it occurred to me that it also may be essential in retirement planning.

FORBES: Applying Murphy's Law To Retirement