Ectobiology
细胞表面生物学
🗣️ 情景例句
before getting to the tough stuff--math.
在对付难缠的东西 数学 之前。
Can you help me out? I'm trying to find a post office.
你能帮我个忙吗？我想找个邮局。
These lights flickered continuously like traffic lights which have gone mad.
灯泡一刻不停地闪烁着，就像失去了控制的红绿灯。