Gastroferrin
胃液铁蛋白
🗣️ 情景例句
Oh, OK.
噢 ，好的。
Being the newest member of this committee is really difficult.
能成为这个集体的新成员是很难的。
I don't think you'll have any difficulty in pushing sales.
我认为你推销时不会有任何困难。