门开前他得拨拨撞锁。
He must shake the little latch before it opens.
youdao
我昨儿晚上去你家串门， 没想到撞锁了。
I went to your place last night and found the door locked.
昨天我去拜访我的一位朋友，结果撞锁了。
Yesterday I went to visit a friend of mine only to find the door locked.
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