Underset
n. 下层流, 下层矿脉
✅ 同义词
🗣️ 情景例句
Oh, I was sorry
噢 ，我很难过
We need them urgently.
我们急需这些资料。
Good, we'll pack up the order as soon as we get the not.
好，我们一收到会立刻打包。