Hef
abbr. 高能成形（High-Energy Forming）；人胚纤维母细胞
🗣️ 情景例句
It's pure fiction.
完全是捏造。
I have great difficulty in understanding him.
我觉得很难理解他。
The test finished. We began our holiday.
考试结束了，我们开始放假。