必不可少

She had resumed the travel necessary to add depth and colour to her novels.

她重新开始了旅行，那是增加自己小说的深度和趣味性所必不可少的。

For a successful class humour is indispensable.

要在课堂上取得成功,幽默是必不可少的.

Payment was part and parcel of carrying on insurance business within the UK.

赔付是在英国开展保险业务必不可少的一部分。

This is an indispensable part of his creed.

这是他的信条中必不可少的一部分.

What essential piece of clothing would you take?

你会带哪件必不可少的衣服呢？

There are certain things that are absolutely basic to the maintenance of a good relationship.

要保持良好的关系,有些条件是必不可少的.

They are in need of food, food is a necessity for all living things.

他们需要食物, 食物对一切生物是必不可少的.

essential proteins and vitamins

必不可少的蛋白质和维生素

We have repeatedly told planners that services are vital on a motorway like the M40.

我们一再告知城市规划者在诸如M40之类的高速公路旁建服务站是必不可少的。

This is an indispensable book.

这是一本必不可少的书.

Close collaboration between the Bank and the Fund is not merely desirable, it is essential.

银行与基金会的紧密合作不仅可取，而且必不可少。

Cars have become an indispensable part of our lives.

汽车已成了我们生活中必不可少的一部分。

There are certain ethical principles that are basic to all the great religions.

某些道德原则在所有主要宗教中都是必不可少的。

A holiday isn't an optional extra. In this stressful, frantic world it's a must.

休假并非可有可无。在这个紧张而忙碌的世界，它是必不可少的。

the vitamins that are vital for health

保持健康必不可少的维生素