You may wonder if light is also needed for life to form.

你可能会想阳光是不是生命形成件。

To create clouds, and to have rain, the air has to be cooled.

想产生云彩，进而下雨，空气遇冷是件。

And that change will only occur if four key elements are met, notes the WHO.

这种改变发生件是以下4个因素满足，这是WHO观。

Pressure control is another necessity inside any ocean habitat.

可控压力是建造海洋栖息地另一个件。

One of the essential requirements of good news writing is accuracy.

优秀新闻报道件之一是准确。

Salt is important to fetuses and children because it is required for optimal growth.

盐对胎儿和儿童都至关重，因为盐是优先生育件。

So, what if 'doing' isn't always necessary to get things done?

那么，如果“做”并不总是完成事情件呢？

Therefore, what is essential for an academic success will be shared in this workshop.

因此，本次研讨会将分享学术成功件。

Owning your weaknesses is necessary for your success and your self-confidence.

正视自己是成功和自信件。

Well, we gotta get ready for hibernation somehow! Eating a lot is definitely a requirement!

我们得为冬眠做好准备呀！大吃特吃可是件！

The SAT is a test many American colleges require as part of the admissions process.

SAT这项考试是美国许多大学录取过程中一项件。

It's absolutely necessary for your brain and body to recharge.

是大脑和身体充电绝对件。

Friends can be a blessing, but they're not essential to survive anymore.

朋友可能是一种福报，但它们不再是生存件。

Do as much work on the inside as is needed for you to bloom.

在内心做尽可能多工作，因为这是你绽放件。

Acknowledging this as a fact is a necessary condition for achieving peace.

承认这一为事实是实现和平件。

It's considered essential to succeed, but in truth is an unending series of life lessons.

它被认为是成功件，但事实上，它是一系列永无止境人生课程。

Contrary to popular belief, self-love is healthy and essential for developing higher self-esteem.

与普遍看法相反，自爱是健康，也是提高自尊件。

Pain is necessary for us to fix our problems.

痛苦是我们解决问题件。

Power is required for the accumulation of money and then the retention of that money.

权力是积累金钱和保存金钱件。

Have fewer traces of copper than those of Europe, Essential for the formula to work.

与欧洲出产银矿石相比 含铜量更少，而铜正是这种化学反应生效件。