有义务

We are under an obligation to help.

我们有义务帮忙。

We are invited, but we are under no obligation to go.

我们是被邀请了，但并不意味着我们有义务一定要去。

I think you're under an obligation not to sign the unfair agreement.

我想你有义务不签署这个不公平的协议。

But I think you are under an obligation to provide customers with quality goods.

但是我认为你们有义务提供给消费者优质的商品。

I am under an obligation to adopt the child for he is my brother's child.

我有义务收养这个孩子，因为他是我哥哥的儿子。

I am under an obligation not to compromise with her.

我有义务不同她妥协。

I'm under an obligation not to compromise with her.

我有义务不同她妥协。

You're under an obligation not to smoke in public places.

你有义务不在公共场所吸烟。不适合

Eighteenth degree: I obligate and pledge myself always to sustain, that it belongs to Masonry to teach the great unsectarian truths, that do not exclusively belong to any religion and acknowledge that I have no right whatever to exact from others the acceptation of any particular interpretation of masonic symbols, that I may attribute to them by the virtue of my personal belief.

第十八程度：我有义务，并保证自己永远保持，它属於圬工教unsectarian的伟大真理，不完全属於任何宗教和承认，我没有权利以任何其他具体的验收任何特定解释的共济会的符号，我可以归因於他们的凭藉我个人的信念。

I have this vested interest|in seeing you happy.

法律上我有义务知道你是否幸福

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。