Monovibrator
单稳多谐振荡器
🗣️ 情景例句
Keep the change.
别找零头了。
We'll start with an orientation video. It runs about 15 minutes.
我们将从一个电视简报开始，大概放15分钟。
He didn't often go to look for food himself.
他不经常自己去寻找食物。