Collastin
[医] 胶质素
🗣️ 情景例句
I'm leaving for Beijing on a four-day tour.
我马上要去北京旅游4天。
Can you give me some feedback?
你能给我一些建议吗？
I had nearly reached the town, when the young man suddenly said, very slowly, Do you speak English?'
“你会讲英语吗？”