以下是幾條含有天氣類單詞的短語,你能猜出劃線部分的含義嗎?
1.I'm under the weather today.Don't play jokes on me.
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2.Bad luck!It's raining cats and dogs.We have to stay at home.
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3.It never rains,it pours.Our shop had only one visitor this
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morning.But at aound 4pm we had more than twenty and a group of tourists came at the same time.