英语书上有一段文字：LookattheinstructionsfortheSmith'strip.Thesenstructionsuse24hourclock.Forexample,0700hoursmeansseveno'clockinthemoring.1900hoursmeansseveno'clockintheevening.①“use24hourclock”hour后

Question

英语书上有一段文字：
Look at the instructions for the Smith's trip.These nstructions use 24 hour clock.For example,0700 hours means seven o'clock in the moring.1900 hours means seven o'clock in the evening.
①“use 24 hour clock” hour后面为什么不加s?24应该是复数才对呀?
②“0700 hours means seven o'clock in the moring.”0700 hours是复数,那为什么后面是“means”呢?mean为什么要变为第三人称单数呢?

Answer 1

1.在这里24小时指的是“24小时制”而不是24个小时,所以不用复数
2.means在这句话中是动词,汉语意思是“意思是,意味着”0700hours指的不是700个小时.而是说的7点整这个时间,所以谓语动词用单数