介绍:
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赌博时用的筹码是chips,
而down可以表示减少下降
那么，chips are down 应该如何理解呢？
看一组对话示例：
A: I like roaming about; I don't want to stay at home.
B: So you keep traveling outside without going home for three years?
A: Yes, but I keep in touch with my family.
B: When the chips are down, you'll find you have to rely on your family for support.
