Unusefulness
不实用或无价值的性质或状态
✅ 同义词
🔴 反义词
🗣️ 情景例句
To the patients in the ward?
读给病房里的病人？
I invited him last Thursday.
我上个星期四邀请他。
Suddenly they came to a waterfall which dropped into an underground lake at the bottom of the cave.
突然，他们来到一道瀑布前，那瀑布奔泻而下，注入洞底一处地下湖里。