英语词汇ballast怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	ballast
释义	bal.last 5bAl7Est n [U] heavy matter such as sand or stone that is used at the bottom of a ship or a BALLOON to make it heavier, or the small stones on which railways and roads are made 压舱物, 镇重物;石碴, 道碴
随便看	underestimate underexpose underfloor underfoot underfunded undergarment undergo undergraduate underground underground undergrowth underhand underhand underlay underlie underline underling underlying undermanned undermentioned undermine underneath underneath undernourished underpaid

英汉双解词典包含44095条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。