Sphaerotilus
[医] 球衣细胞属
🗣️ 情景例句
OK.
好的。
Peter began to hear about the interesting new play.
彼德开始听到新放映的电视剧很精彩。
Suddenly, there was a slight trembling sound from below, and the captain went down to see what had happened.
突然，从船舱下部传来一声微颤音，船长走下船舱去查看究竟。