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

你一定要幫助我們。

You must help us.

Source: Tatoeba

你一定要好好記住。

You must bear it in mind.

Source: Tatoeba

我一定要馬上去嗎？

Must I go there at once?

Source: Tatoeba

一定要告訴他們喔。

Make sure you tell them.

Source: Tatoeba

你们全部一定要读。

All of you have to read it.

Source: Tatoeba

你一定要鼓起勇气。

You must build up your courage.

Source: Tatoeba

地板一定要保持乾淨。

The floor must be very clean.

The floor must be kept clean.

Source: Tatoeba

我一定要給湯姆投票。

I'll definitely vote for Tom.

Source: Tatoeba

一定要有人照顧病人。

Somebody must care for the patient.

Source: Tatoeba

瑪格一定要完成學業。

Meg must continue her studies.

Source: Tatoeba

我一定要把香烟戒了！

I'm definitely going to give up smoking!

I'm definitely going to quit smoking!

Source: Tatoeba

他们一定要知道这件事。

They must know this.

Source: Tatoeba

你一定要注意他的建议。

You must pay attention to his advice.

Source: Tatoeba

我为什么一定要那么做？

Why do I have to do that?

Source: Tatoeba

我为什么一定要知道呢？

Why must I know about it?

Source: Tatoeba

选择朋友一定要十分谨慎。

You should choose your friends very carefully.

Source: Tatoeba

這封信一定要用英文寫嗎？

Must this letter be written in English?

Source: Tatoeba

明天，一定要给我打电话。

Mind you call me up tomorrow.

Source: Tatoeba

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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