Valvulae coli
[医] 结肠瓣, 回盲瓣
🧩 词语组成解析
[医] 瓣, 瓣膜
n. 大肠杆菌
🗣️ 情景例句
Hi, it's nice to meet you.
你好，很高兴见到你。
He keeps on studying ecology.
他不断攻读生态学。
and to exercise such initiative as falls within their sphere,
在各自的工作范围内发挥主动性，