形容詞 at a loss:

1. filled with bewilderment
   同義詞：nonplused, nonplussed, puzzled

副詞 at a loss:

1. below cost

1. I'm at a loss what to do next.
   我不知道下一步怎么辦。
2. He is always at a loss what to say in front of strangers.
   他在生人面前總是不知要說什么。
3. If you buy a house for22000 and sell it for20000 you are selling at a loss.
   如果你買房時花了22000英鎊，賣時只賣20000英鎊，那么你就賠錢了。
4. Drawn up sharply by an unexpected question, I felt at a loss.
   突然被一個意外的問題難住，我感到不知所措。
5. Many people are at a loss as to what to do in case of a real fire.
   一旦真的發(fā)生火災，許多人就不知所措，不知道該干什么好了。
6. I am always at a loss to know how much to believe of my own stories.
   我老是在困惑，對自己寫的那些故事究應(yīng)相信到什么程度。