padlocking/ˈpæd.lɑːk/名词挂锁,扣锁/ˈpæd.lɑːk/动词用挂锁把…锁上The box was securely padlocked and no one had the key.箱子用挂锁牢牢地锁上了,没人有钥匙。想跟读,去练习