Efficaciousness
n. 有效;灵验
🗣️ 情景例句
Has poor scholastic record, just got by.
学习成功不够好，仅仅过得去而已。
The law is not the same at morning and at night.
早上的法令跟晚上的不一样；朝令夕改。
There is an interesting film on Channel one.
在一频道有一部有趣的电影。