casting vote
noun [ S ] uk/ˌkɑː.stɪŋ ˈvəʊt/ us/ˌkæs.tɪŋ ˈvoʊt/
（赞成票与反对票相等时会议主席所投的）决定性一票
a single vote, given by the person in charge of a meeting if the number of votes about something is equal, that decides the matter
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。