Food, clothing, shelter and transportation are essential to life.

衣、食、住、行是生活中必不可少的。

As we all know, punctuality is essential to the railway service.

众所周知，准时对铁路服务非。

A normal balance of electrolytes is essential to the normal function of cells and organs.

正的电解质的平衡状态对于细胞和器官的正运转非。

First, it's essential to know why the emperor is an emperor.

首先，了解皇帝为什么称之为皇帝。

Engaged discussion and passionate argument are essential to a college education.

对于大学教育来说，讨论的参与和这种激情澎的论证是至关的。

I am grateful to my parents for their support, which is essential to my success.

我谢父母的支持，这对于我的成功至关。

Healthy coral reefs are essential to a healthy marine ecosystem.

健康的珊瑚礁对健康的海洋生态系统至关。

It's essential to have strategies in place to manage those feelings.

的是先备好策略来应对受。

But that is why it is essential to create a clear goal with a timeline.

但这就是为什么创建一个有时间表的明确目标是至关的。

C) It is essential to maintaining both mental and physical health.

C）保持身心健康至关。

So that continual output is essential to speaking better English but boosting your motivation.

持续的输出对于一口流利的英语是必不可少的，但也能增强你的动力。

Medical experts say the vaccine is essential to public health because measles is highly contagious.

医学专家表示，疫苗对公众健康至关，因为麻疹具有高度传染性。

It's essential to how we communicate with each other and even with our technology.

它在我们日对话、甚至是科技中都扮演着角色。

So for those people it was essential to learn languages, so those people can.

对这人来说，学习不同的语言非有必，所以他们可以说三种语言。

A) They are essential to our self-esteem.

A) 它们对于我们的自尊至关。

In short, we're not really sure, but we know it's essential to life.

总之，我们并不确定，但我们知道它对生命来说很。

This is essential to help you develop really strong listening and comprehension skills.

这对于帮助你培养真正的听力和理解能力至关。

C) It is essential to the recycling of plastic bottles.

C）这对塑料瓶的回收利用至关。

Get Enough Sleep Sleep is essential to a variety of bodily functions, memory recall included.

保证充足睡眠睡眠对各种身体机能至关，记忆力也不例外。

A solid, healthy stretch of nighttime sleep is essential to overcoming or avoiding burnout.

充足、健康的夜间睡眠对于克服或避免过度劳累是至关的。