Costs
n. 费用；诉讼费；损失（cost的复数）
✅ 同义词
🔴 反义词
🗣️ 情景例句
I don't know why I didn't think of it.
我不知道为什么我没有想到这一点。
What's your friend doing?
你的朋友正在做什么？
but custom, we have a way of thinking, is behaviour at its most commonplace.
至于风俗呢，只是些司空见惯的行为而已。