英语词汇petcock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	petcock
释义	petcock petcock n: (small valve for relieving pressure, as on a boiler) SC 小阀门 n TC 小閥門 SC 小活门 SC 小活栓
随便看	envenom enviable envier envies envious enviously environ environment environmental environmentalism environmentalist environmentally environmentally friendly environmental protection agency environmental science environment-friendly environs envisage envisages envision envisioned envoi envoy envoy extraordinary envy

英汉双解词典包含74752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。