5) My love for you is as deep as the sea.
对你的爱，似海深。
6) I'll love you as long as I live.
爱你一辈子（爱你千万年）。
7) If the sun were to rise in the west, I'd never change my mind to love you forever.
即使太阳从西边出来，我对你的爱也不会改变。（顺便温习一下虚拟语气吧）
8) You're the only man/woman I could be happy with.
（这句话是不是太夸张？）