英语词汇“mail cover check”的翻译、意思、用法、释义-英汉双解词典-注文网

单词	mail cover check
释义	mail cover check 〈美〉美国联邦调查局对私人信件的秘密检查
随便看	plunger joint rod plunger key plunger knob plunger latch plunger lead plunger leather plungerless plunger lever plunger lever pin plunger lever shaft plunger lift plunger lift to spill port opening plunger lift when cut-off port closing plungerlike plunger line switch plunger linkage plunger link plate plunger load plunger lock plunger lower helix plunger magnet plunger magnet (coil and plunger) plunger mark plunger matching parts plunger metering pump 得病如墙倒，去病如抽丝得病如山倒，去病如抽丝得着毛驴当马骑得着风便扯篷得知千载事，正赖古人书。得知千载外，正赖古人书。得福者未必非祸，得祸者未必非福得粥便嫌薄得粥莫嫌薄。得绥山一桃，虽不能仙，亦足以豪嬉しい悲鳴嬉しなき嬉しなみだ嬉し泣き嬉し涙嬉シイ嬉シナキ嬉シナミダ嬉シ泣キ嬉シ涙