Defensin
抵御素
🗣️ 情景例句
I haven't decided whether I will go camping or not, but it is certainly possible.
我还没决定是否去露营，但还是有可能去的。
Dumb dogs are dangerous.
哑犬最凶恶。
He's already a little weak in Chinese.
他的中文已经有点儿弱了。