Efficaciousness
n. 有效;灵验
🗣️ 情景例句
Aren't you hungry, Marilyn?
不饿吗， Marilyn？
Please slow down.
请慢一点。
Before returning home at night.He took a shower and changed back into his suit.
晚上回家前，他洗个淋浴，重新换上那身黑色西服。