上锁的英文：
n. locking

参考例句：

Insert the key and turn it 180 degrees to engage the lock. Remove the key
插入钥匙，转动180度上锁，然后拔出钥匙

Even the doors that were not locked were of no use to the workers.
即使那些没有上锁的门对工人们来说也形同虚设。

One day she came into his office and happened to put her hands on the door of a locked safe.
有一天,她来到他的办公室,碰巧她把手搁在一只上锁的保险箱的门上。

locking是什么意思：
v. 锁上；把…锁起来；（使）固定；卷入；紧抱住
n. 锁；闸门；完全控制

a lock; a tangle
一绺头发

The lock keeper closed the lock gate.
船闸管理员关上了闸门。

Chittenden Locks is the busiest lock system in the US.
齐坦丹水闸是美国最忙的水闸。

I left the key in the lock.
我把钥匙留在锁上，忘了取下来。

Close the lock gate please.
请关上闸门。