Srac

abbr. short-run average-cost 短期平均成本; short-run average-cost curve 短期平均成本曲线

🗣️ 情景例句

Large or Little?
大杯还是小杯?
You'd better go at once, hadn't you?
你最好马上走,不对吗?
They're dangerous!
它们是很危险的!
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