essential for

Food is essential for life.

生命离不开食物.

Articulate speech is essential for a teacher.

对教师来说,口齿清楚是必不可少的.

Breathable, waterproof clothing is essential for most outdoor sports.

大多数户外运动衣服必须透气且防水。

Polyunsaturated oils are essential for health. Excess is harmful, however.

多不饱和油对健康很重要。但是，食用过量就会有害。

Whatever method of heating was used, artificial respiration was essential for reanimation.

无论用任何暖和方法, 人工呼吸仍是救生所必需的.

It's not essential for me to have four houses.

我没必要拥有四所房子.

Water is essential for plants.

水对于植物是必需的.

Some of the pesticides are also essential for protecting human and animal health.

有些农药对保护人类及动物的健康也是至为重要的.

Very favourable conditions are essential for the continuous and regular high production of orchard seed.

为了使种子圆种子获得持续正常的高产,必须有十分适宜的环境.

This is essential for our mutual benefit.

这对我们的共同利益是必要的.

It is essential for us to know all the facts.

对我们来说,了解所有的事实是必要的.

This was not only visually appealing, but essential for the vibrational effect.

这不仅在视觉上很迷人, 而且对振动效果十分必要.

Air, food and water are things essential for life.

空气, 食物和水是生命不可缺少的东西.

The possession of a passport is essential for foreign travel.

去国外旅行需持有护照.

A high weathercock frequency is essential for the stability of the guidance loop.

从制导回路的稳定性角度来看,短周期振荡频率高是基本的.