Concurrent conditions
[经] 共存条件
🧩 词语组成解析
n. 形势, 情况, 环境
🗣️ 情景例句
I'm concerned.
我很担心。
It isn't much.
这是微不足道的。
In fact a basic amount of movement occurs during sleep which is specifically concerned with preventing muscle inactivity.
事实上，睡眠状态下仍有着基本的活动量，以防止肌肉活动停止。