Word: 充分 (chōngfèn)

他充分利用他的机会。

Tā chōngfèn lìyòng tā de jīhuì.

He makes the most of his opportunities.

他有充分的理由这样做。

Tā yǒu chōngfèn de lǐyóu zhèyàng zuò.

He had every reason for doing so.

你有充分的理由生气。

Nǐ yǒu chōngfèn de lǐyóu shēngqì.

You have good reason to be angry.

你的理由很充分。

Nǐ de lǐyóu hěn chōngfèn.

Your reason is very good.

医生坚持病人获得充分的休息。

Yīshēng jiānchí bìngrén huòdé chōngfèn de xiūxi.

The doctor insisted that the patient get plenty of rest.

我们有充分的理由相信这是真的。

Wǒmen yǒu chōngfèn de lǐyóu xiāngxìn zhè shì zhēnde.

We have full reason to believe that it is true.

这才算一个充分的理由。

Zhè cái suàn yí gè chōngfèn de lǐyóu.

Now that's a good reason.