Changing
v. 交换；兑换；改变（change的ing形式）
✅ 同义词
🔴 反义词
🗣️ 情景例句
Excuse me, ma'am.
对不起 夫人
The efficiency is greatly raised,and the intensity of labor is decreased.
工作效率大大地提高了，而劳动强度却降低了。
What do the farmers do with your machines?
农民用机器做什么呢？