Dream boat:

夢寐以求的船 X

夢寐以求的人或事 √

例句：

Jane is so smart and pretty that she's my dream boat.

簡如此聰明漂亮，是我心中的白雪公主。

Rock the boat:

砸船 X

搗亂，制造麻煩，興風(fēng)作浪 √

例句：

Things are going well, don't rock the boat.

事情進行得很順利 — 千萬不要自找麻煩。

Boat-people:

難民 √

例句：

Hundreds of thousands of boat people descending [d?'send??]  on the nation, arms outstretched in need. (Jerry Adler)

無數(shù)難民涌入這個國家。