门上装了防盗锁。
A security lock is installed on the door.
to guard against theft; anti-theft
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.
门上装了防盗锁。
A security lock is installed on the door.
小区防盗措施很好。
The community has good anti-theft measures.