Muting is when you turn off the sound and unmuting is when you turn it on.

静音是指你关掉声音，而取消静音是指你打开声音。

Or wasn't familiar with the muting and unmuting that we've gotten so adept at in our years of Zooming.

或者不熟悉我们在多年的Zoom使用中变得非常熟练的静音和取消静音操作。

Zoom calls work best with between two and four participants, when there is less need for people to keep muting and unmuting, more chance to see people's facial expressions and less chat-room blather.

Zoom 通话最适合 2 到 4 名参与者，此时人们不需要一直保持静音和取消静音， 有更多机会看到人们的面部表情， 聊天室的谈话也更少。