单词 ballast 释义 ▪ I. ballast, n.|blst|Forms: 6–8 balast, 6–7 ballace, 6 ballass, -esse, balest, -ist, 7 balasse, -ase, ballasse, -ais, 7 ballast.[Now found in most of the European langs.; Sw. Da., Fris., Du., LG. (whence Ger., Russ., Fr.) ballast. O...
单词 ballast 释义 ballast n 1 [U] heavy material placed in a ship´s hold to keep it steady 压舱物, 压载物(船中用以保持平稳的). 2 [U] sand or other material carried in a balloon, that can be thrown out to make the balloon go higher 气球所装载的沙子...