Dgf
[医][=duct growth factor]导管发育因子
🗣️ 情景例句
She doesn't know we've changed hotels.
她不知道我们换了旅馆呀。
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。
Well, you're going to have roast beef and potatoes again tonight!
唉，今晚你们又要吃烤牛肉和土豆了！