Effectivity
n. 有效, 功效
🗣️ 情景例句
Well, that was delicious! Thanks very much indeed. I know that you are a really good cook.
阿，这顿饭真是太可口了，非常感谢。我知道你是一个非常出色的厨师。
It's a windy city.
这是一个多风的城市。
I hope you enjoy your stay with us.
希望您在这儿过的愉快。