Phonometry
声强度测量法
🗣️ 情景例句
That's a good idea.
好主意。
To climb stairs
爬楼梯
But we do not need to send men down to get the oil out, as we must with other mineral deposits.
但是，我们不必像开采其他矿藏那样，把人送到地下去把石油取出。