不可或缺

bùkěhuòquē
  1. necessary
  2. must have

CEDICT

necessary; must-have; indispensable

Wiktionary

必須，不能缺少。

重編國語辭典

Examples

空氣是生命中不可或缺的。

Air is indispensable to life.

Source: Tatoeba

學習時努力是不可或缺的。

Effort is essential to studying.

Source: Tatoeba

在下雪很多的地方，煤油是不可或缺的东西。

In places where it snows a lot, kerosene is an indispensable item.

Source: Tatoeba

Entry Composition

1 不可 bùkě cannot; should not; must not
2 或缺 huòquē
  1. to lack
  2. to do without

Related entries

必要 bìyào
  1. necessary
  2. essential
  3. indispensable
  4. required
沒必要擔心。

There's no reason to be alarmed.

Source: Tatoeba

所需 suǒxū
  1. necessary (for)
  2. required
我給她的正是她所需要的。

I gave her just what she needed.

Source: Tatoeba

要有 yàoyǒu
  1. to need
  2. to require
  3. must have
要有大局观。

We should judge matters on a broader basis.

Source: Tatoeba