Monotreme
n. 单孔目动物\\n[医] 单孔类
🗣️ 情景例句
Excuse me. Is this seat taken?
对不起 ，请问这个座位有人吗？
To read without reflection is like eating without digestion.
学而不思，犹如食而不化。
We are prohibited from smoking on school grounds.
我们被禁止在校园内抽烟。