Retroinfection
逆传染
🗣️ 情景例句
Are you sure?
你确定？
Who wrote that piece?
那首曲子是谁写的？
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。