Protective ferment
[医] 防护[性]酶
🧩 词语组成解析
🗣️ 情景例句
That's it.
就这样。
Of course.
当然。
Because of this, we kept looking back, wondering if we were leaving a trail of oil and petrol behind us.
因此，我们不时地掉过头，怀疑车后是否留下了机油和汽油的痕迹。