Impingements
(impingement 的复数) [化] 碰撞
🗣️ 情景例句
I had a really bad day.
今天真是糟透了。
Today, they will introduce to you our newly built plant and research center.
今天，他们将会向您介绍我们新落成的工厂和研究中心。
What was the population of the world in 1950?
1950年世界人口是多少？