Biolevel
生物水平面
🗣️ 情景例句
Certainly, Miss. What are you going to have?
当然可以，小姐。您想吃点什么？
Don't swap horses when crossing a stream.
行至中流不换马；危难之时不宜作大变动。
Ducks know how to swim when they are born.
鸭子天生会游泳