Bisuberate
辛二酸氢盐
🗣️ 情景例句
In addition, it's great exercise too, since we do a lot of hiking.
还有，那也是个好的运动，因为我们要长距离徒步旅行。
Any time.
随时都愿意效劳。
Excuse me. May I have a piece of paper, please?
请问，我可以要一张纸吗？