drop me a line给我写信,为什么用drop

drop me a line给我写信,为什么用drop 问下,给某人写信是不是drop sb a line? drop me a line什么意思? drop them a line drop me a line once in a while 翻译drop sb a line If you are interested in being my friend,drop me a line. 是什么 drop me a line and lets see if we can make it happen. So drop me a line and we'll see where it may lead. A girl saw my pen drop when she was passing me .这里为什么用when? drop “drop someone a line"的另一种意思并举例