Appropriacy
n. （措词的）准确性, 中肯, 恰到好处
🗣️ 情景例句
I would be happy to show you around.
我很乐意带你到四周看看。
I'm so glad you could make it.
我很高兴赶上时间。
that people have for years assumed that the process of losing vigour with time,
多年来就已认识到。生命力随着时间流失而丧失活力，