Dgf
[医][=duct growth factor]导管发育因子
🗣️ 情景例句
What a pleasant surprise running into you.
碰见你真是太棒了！
A bad custom is like a good cake, better broken than kept.
坏习惯像鲜馅饼，分食要比保存好。
The man said that the pen was worth $50,
那人说那支笔值50英镑，