Naotin
烟酸钠
🗣️ 情景例句
Have you been here to see Dr. Tyler before?
你曾来过泰勒医务所看过医生吗？
You look more rested than I've seen you before.
你比上次我看到你的时候精神多了。
What's the weather like today?
今天天气怎么样？