今日小常识

　　Despite their popularity in the aquarium trade, mandarin fish are considered difficult to keep, as their feeding habits are very specific. They are also sometimes called psychedelic fish due to their unusual colouring.

　　尽管鳜鱼在水族交易市场中很受欢迎，但人们认为这种鱼很难喂养，因为它们的饮食习惯非常特殊。这种鱼因其不寻常的颜色有时也被称为迷幻鱼。

　　短语 to feel blue 用来形容一个人感到悲伤，压抑。

　　例句

　　I don't want to go out. Since my boyfriend left me I've been feeling blue.

　　Don't feel blue. Life is short, have some fun!

　　请注意

　　另一个短语 until you're blue in the face 意思是某人竭尽全力的花很长时间做某事，不过就算干到脸色发青也是白干。

　　You can talk until you're blue in the face. You are not my boss and I'm not going to follow your orders!

编辑：张雨

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