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Open the tool →深扃固钥 (shēn jiōng gù yào) is a Chinese idiom (chengyu) meaning “to keep something tightly locked away”.
深扃固钥 is pronounced shēn jiōng gù yào in Mandarin Chinese.
Literally, 深扃固钥 means “Deeply barred and firmly locked”. It is used to mean “to keep something tightly locked away”.
把门窗关紧锁严。比喻把事物的真相隐藏起来而不使之外露。