明枪易躲，暗箭难防
lit. easy to dodge the spear in the open, hard to avoid a stab in the dark (idiom); it is hard to guard against secret conspiracies
Traditional: 明槍易躲，暗箭難防
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📖 Additional Information
English Phonetic:
'idiәm
Detailed Definition:
n. an expression whose meanings cannot be inferred from the meanings of the words that make it up