一定要

yīdìngyào
must

CEDICT

Examples

一定要有蘋果。

Apples are necessary.

Source: Tatoeba

你一定要幫幫她。

It is necessary for you to help her.

Source: Tatoeba

我一定要馬上去嗎？

Must I go there at once?

Source: Tatoeba

你一定要好好記住。

You must bear it in mind.

Source: Tatoeba

你们全部一定要读。

All of you have to read it.

Source: Tatoeba

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Entry Composition

1 一定 yīdìng
  1. surely
  2. certainly
  3. necessarily
  4. fixed
  5. a certain (extent etc)
  6. given
  7. particular
  8. must
2 要 yào
  1. to want; to need; to ask for
  2. will; shall; about to
  3. need to; should
  4. if (same as 要是 yàoshi)
  5. (bound form) important

Related entries

務必 wùbì
  1. must
  2. to need to
  3. to be sure to
務必在三點鐘來。

Be sure to come at 3.

Source: Tatoeba

合當 hédāng
  1. must
  2. should
他不适合当老师。

He is unfit to be a teacher.

Source: Tatoeba

必得 bìděi
  1. must
  2. have to
他们坚持认为日常锻练是必得表出的行为。

They insist that daily exercise is an action that must be done.

Source: Tatoeba

總得 zǒngděi
  1. must
  2. have to
  3. be bound to
總得有過河的辦法。

There must be some way of traversing the river.

Source: Tatoeba

非得 fēiděi (followed by a verb phrase, then – optionally – 不可, or 不行 etc) must
你不必什麼都非得自己來。

You shouldn't try to do everything by yourself.

Source: Tatoeba

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