英语词汇point duty是什么意思，point duty的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-电脑手机教程网

单词	point duty
释义	DEFINITIVE EXAMPLES 权威例句〔duty〕The traffic lights were not working so there was a policeman on point duty.交通信号灯坏了，所以有一个警察在执勤指挥。牛津搭配
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