I could float off this floor like a soap bubble if I wish to.

只要我愿意,我可以像肥皂泡一样,在这间屋子里飘浮起来.

Icebergs are created when chunks of pack ice break free and float off into open sea.

当大块积冰断裂、漂浮至远海的时候,冰山就形成了.