Word: 义务 (yìwù)

帮助是我们的义务。

Bāngzhù shì wǒmen de yìwù.

It is our obligation to help.

我并没有义务帮助你。

Wǒ bìng méiyǒu yìwù bāngzhù nǐ.

I actually don't have an obligation to help you.

我觉得有义务。

Wǒ juéde yǒu yìwù.

I felt obligated.

我认为我有义务保护这些孩子。

Wǒ rènwéi wǒ yǒu yìwù bǎohù zhèxiē háizi.

I believe it my duty to protect these children.

每一位选手都有义务遵守规则。

Měi yí wèi xuǎnshǒu dōu yǒu yìwù zūnshǒu guīzé.

Every player is under obligation to keep the rules.

这是您的义务。

Zhè shì nín de yìwù.

That's your responsibility.

遵守法律是我们的义务。

Zūnshǒu fǎlǜ shì wǒmen de yìwù.

It is our duty to obey the law.