Additivity
[化] 相加性; 加成性; 叠加性
🗣️ 情景例句
Here's $ 1000 for the trip. Use some of it for stamps.
这里是1000美元，给你当旅费。要把一些用来买邮票啊！
To speak to the public
向公众呼吁
What are you doing on Saturday evening?
你星期六晚上要干什么？