他们在监测空气。
They are monitoring the air.
to monitor
Every character draws itself, stroke by stroke. Then grab the brush: trace it yourself and hear the word when you finish.
Nice writing!
Chinese words snap together like bricks. Every word below shares a character with this one, so you are already halfway to knowing it.
他们在监测空气。
They are monitoring the air.
这座桥有人监测。
This bridge is monitored.