Backpitch
反螺旋; 背节距
🗣️ 情景例句
Mrs. Harry Bennett.
Harry Bennett太太。
Would you like me to get you a cab?
要我替你叫出租汽车吗？
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。