Coliform bacteria
[医] 大肠杆菌群
🧩 词语组成解析
n. 大肠菌\\na. 大肠菌状的
🗣️ 情景例句
Practice tenses as much as possible.
操练各种时态。
If he wants to make any changes,minor alternations can be made then.
如果他有什么意见的话，我们还可以对计划稍加修改。
The further off this solid obstruction, the longer time will elapse for the return of the echo.
固体障碍物越远。回声返回所用时间就越长。