订婚用英语如何说，动词和名词？seal the marriage 可以吗？

订婚
be engaged
be betrothed
get engaged
engagement

杰克和安妮订婚了。
Jack and Anne are engaged.
我们刚刚订婚.
We've just got engaged.
他们向家 宣布他们已经订婚了.
They announced their engagement to the family.

订婚:
engagement

动词： engage

1. 杰克和安妮订婚了。
Jack and Anne are engaged.
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2. 他们订婚的消息登报了。
Their engagement was announced in the papers.

engagement

engage