Cephamycin
头霉素
🗣️ 情景例句
to meet the rest of the troop at two o'clock at the museum.
我们得在两点钟到博物馆与其他童子军会合。
Do whatever seems best.
只要察觉出是最好的，就去做。
It has belonged to our family for a long time.
我们家有这件乐器已经很久了，