1. 安娜自以為了不起，她變得越來越高傲，我簡直受不了。
   Anna thinks something of herself. She's getting too high and mighty for me.
2. 安娜不會游泳，在游泳池的深水區(qū)里掙扎著。
   Anna couldn't swim and was left floundering (about/around) in the deep end of the swimming-pool.
3. 我見過安娜，但從未見過她那位朋友。
   I'd met Anna before, but her friend was a complete/total stranger to me.
4. 安娜在讀一部科幻小說，完全沉浸在書中。
   Anna was reading a piece of science fiction and completely lost in the book.

安的英語翻譯：