Effectivity
n. 有效, 功效
🗣️ 情景例句
My boss expects me to work day and night.
我的老板恨不得我一天到晚地工作。
He informed them that his mother had died.
他通知他们的母亲死了。
It is possible that there is a definite relation between these paintings and the markings that sometimes accompany them.
有时，这种图画与墙壁上的刻痕共存，它们之间可能有一定的联系。