Dimorphism
n. 同种二形, 二态性\\n[化] 双型; 双晶现象
🗣️ 情景例句
Come on in.
请进。
Generally speaking, it's cheaper but slower to ship goods by sea than by rail.
总的来说，海运比铁路运输更便宜，但速度慢一些。
Human beings are divided into two classes:
人被分为两种类别：