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秘密活动
秘密活動
mìmìhuódòng
1. clandestine activities
2. covert operation

Character Breakdown

秘
mì
secret, mysterious, abstruse
HSK 5 10 丶
密
mì
secret, confidential; intimate, close; dense, thick
HSK 4 11 丶
活
huó
to exist, to live, to survive; living, working
HSK 4 9 丶
动
dòng
to move, to happen; movement, action
HSK 2 6 丶

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