Hef
abbr. 高能成形（High-Energy Forming）；人胚纤维母细胞
🗣️ 情景例句
So was my night.
晚上也还不错。
It's a piece of cake.
这很容易。
They also have the disadvantage of being an expensive form of transport.
飞机另一个缺点是昂贵。