Sialoprotein
骨唾液酸糖蛋白
🗣️ 情景例句
He's a good father.
他是个好父亲。
All are not merry that dance lightly.
表面高兴的，未必都快乐。
We had spent several days in a small town and visited a number of old churches in the vicinity.
我们在一座小镇上逗留了几天，参观了附近的许多古老的教堂。