mén / guān / shàng / shí / chuán / lái / yì / shēng / kǎ / da / shēng / wū / lǐ / lì / kè / ān / jìng / xià / lái

门关上时传来一声咔哒声，屋里立刻安静下来。

A clunk came from the door as it closed, and the room immediately fell silent.