用英语学英语口语：call it a day的意思你懂吗？
call it a day有两个“意思”：中文意思和英语意思。
你想知道哪个意思？
如果从口语训练角度看，我们需要见call it a day，说出它的英语意思的能力。
看看例句：
1. This package is the last one. Once we get this shipped, we can call it a day.
2. The boss was mad because Tom called it a day at noon and went home.
3. II searched for hours but I had to call it a day when darkness fell.
4. Tomorrow is going to be busy, so let's call it a day for today.
5. It's past five o'clock so let's call it a day.
“说英语”：
Well, when we say call it a day, we mean we stop working, or doing what you are doing.
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