extend an open invitation长期邀请

用 take up my duties 把一桩公职说得平平淡淡，越是平静越显分量。

take up one's duties as ...

正式宣布就任、履新时用；日常说上班上任可用 start the job。

He took up his duties in June. ／ She takes up her post next month.

正式

take up my 连读，education 重音在前。

She leaves for Geneva to take up her duties as ambassador. 她动身去日内瓦就任大使。

把邀请说成「open invitation」，没有期限，比任何客套都真诚。

extend an open invitation for someone to do something

郑重邀请、又不想给对方压力时用；语气正式而诚恳。

You have an open invitation to visit us. ／ Consider this a standing invitation.

正式

extend an 连读，invitation 重音在后。

I extend an open invitation for you to stay any weekend. 你随时哪个周末都可以来住。

用 circumstances 把「就此打住」说得体面，既拒绝又留了台阶。

Under the circumstances, I don't think we should ...

委婉叫停某个话题或做法时用；语气正式而克制。

Under the circumstances, let us wait. ／ Given the situation, we should stop here.

正式

Under the 连读，pursue 重音在后。

Under the circumstances, I don't think we should decide today. 在这种情况下，我看今天不该做决定。

be bound to 把「肯定会发生」说得笃定，后半句一转，透出体贴。

be bound to be doing something

断定某事一定会发生时用；比 will 更笃定，适合预测。

They are bound to be late. ／ It is bound to rain tonight.

中性

bound to be 连读，celebration 重音在前。

They are bound to be talking about it. 他们肯定在议论这件事。

foretold 把结局的荒谬说成命运的反转，一句反问替全片收了尾。

Who could have foretold that ...?

感叹某事完全出乎意料时用；语气文学，适合感慨。

Who could have predicted this? ／ Nobody could have foreseen it.

literary

could have 弱读，foretold 重读。

Who could have foretold that they would become friends? 谁能想到他们后来成了朋友？