Endoprocta
内肛亚纲
🗣️ 情景例句
I've got to explain about it.
我得解释一下此事。
The girl I love is much younger than me.
我爱上的女孩比我小多了。
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。