单词 pumpless 释义 pumpless, a.[See -less.]Without a pump.1899Daily News 9 Nov. 8/1 The majority depend upon pumpless wells.{var l=document.getElementsByTagName("link");var r=/OED4.css$/;for(var i=l.length-1;i>=0;i--)with(l[i].href){var m=match(r);if(m&&...