Efficaciousness
n. 有效;灵验
🗣️ 情景例句
I care about new fixtures in the hallways--
我关心走廊的新灯具，
There are seven of us altogether.
一共有7个。
At the same time, a number of teenagers climbed on to the dish and held a little party of their own.
就在这个时候，许多十几岁的孩子爬盘子举行他们自己的集会。他们跳起了舞，盘子难以承受。