英语词汇“positive block”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	positive block
释义	positive block noun : a block in which only one railroad train is allowed to be at one time compare block system
随便看	Black Hills Black Hills beetle Black Hills spruce black hole black holes black Hollander black horehound black horse black house black huckleberry black humor black humorist black huron black hurts black ice Black Independence Day black Indian hemp black ink black ipecac black ironwood black Italian poplar black ivory black jew black jewfish black kale

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。

positive block