a lemon的俗语意思

　　例句：

　　You are a lemon.

　　你真没用。

　　The answer is a lemon.

　　这个答案完全不可思议。

　　The car is a lemon, so you don't have tospend so much money on it.

　　这车子不值钱，所以没必要花那么多钱在它上面。

　　If you were a lemon, you would not be supposed to dwell on the sweetness of watermelon.

　　如果你是一只柠檬，就不该老是盯着西瓜的甜。