明ㄇㄧㄥˊ槍ㄑㄧㄤmíngqiāng易ㄧˋ躲ㄉㄨㄛˇyìduǒ，暗ㄢˋ箭ㄐㄧㄢˋànjiàn難ㄋㄢˊ防ㄈㄤˊnánfáng

简明枪易躲，暗箭难防

英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