单词	back vent
释义	back vent noun : a ventilating pipe attached to a waste pipe on the sewer side of its trap to prevent siphonage back venting noun Word History First Known Use 1915, in the meaning defined above
随便看	comatulae comatulid comatulids comb comb (out) comb binding comb disease comb duck comb fern comb filter comb foundation comb grain comb honey comb jelly comb marbling comb out comb perforation comb piece comb pottery comb rat comb ridge comb scab comb shell comb speedwell comb wheat grass

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。