Cgf
[医][=cartilage growth factor]软骨生长因子
🗣️ 情景例句
That's all right.
没关系。
How much is a call to the United states?
打一个电话到美国去需要多少钱？
The mobile phone is as popular as the beeper nowadays.
现在手机和寻呼机一样普及。