Underactivity
n. 不够活跃, 缺乏活动
🗣️ 情景例句
That's fine. I think I can wait till then.
好的，我想我可以等到那时候。
He concentrated solely on law studies.
他把全部精力只用于攻读法律。
There is a stereo in the room.
客厅里有台立体声音响。