Effectivity
n. 有效, 功效
🗣️ 情景例句
How many languages do you speak?
你会讲几种语言？
I made 11 British pounds.
我赚了十一英镑。
Yesterday the firemen examined the ground carefully, but were not able to find any broken glass.
昨天，消防队员仔细查看了地面，但未能发现碎玻璃。