Co-operator
n. 合作者；合作社社员
📖 牛津释义
co-operator
n.
🧩 词语组成解析
[医] 钴(27号元素)
🗣️ 情景例句
They're both students of the performing arts.
他们两个都是的搞表演艺术的学生。
Now or never.
机不可失，失不再来。
These are partly a matter of personal circumstances, partly a matter of psychology.
这里一方面是个人所处的环境，另一方面是个心理学的问题。