Be engaged (to somebody):
订婚
例句:
She's engaged to Peter.
她与彼得订婚了。
Apply for/get a marriage license:
领结婚证
例句:
Mary and Jack at last decided to get a marriage license after cohabiting for three years.
在经过三年的同居生活后,玛丽和杰克终于决定领结婚证了。
File for divorce:
申请离婚
例句:
They have filed for divorce.
他们已提出离婚申请。
Assignment(脑洞大开