Ibit
氧碘鞣酸铋
🗣️ 情景例句
at the end of the semester.
就在这个学期结束的时候。
No, No. You can't do it like that.
不行，不行。不能随你那样做。
It's much cheaper to camp than to stay in a hotel.
露营比住旅馆要便宜多了。