circumoral excretory ring

例句：

1. 1. The researchers found that thecircumoral excretory ring wasresponsible for the bacteria's ability tosurvive in the environment.
   研究人员发现，环状排泄环是细菌在环境中生存的能力。
2. 2.The circumoral excretoryring is a fascinating biological phenomenon that hasbeen studied for decades.
   环状排泄环是一个令人着迷的生物学现象，已经研究了几十年。
3. 3. The discovery of thecircumoral excretory ring hasopened up new possibilities for studying the relationshipbetween bacteria and their environment.
   发现环状排泄环为研究细菌与其环境之间的关系开辟了新的可能性。