用英语表达以下时间 6：00 7：15 21：45 8：30 23：10

用英语表达以下时间 6：00 7：15 21：45 8：30 23：10

6：00 six o'clock
7：15 seven fifteen / a quater past seven
21：45 twenty-one forty-five / a quater to twenty-two
8：30 eight thirty / half past eight
23：10 twenty-three ten / ten past twenty three

clock :from seven o':40: ten to ten or nine fifty:154:50;clock to eight o':45:fouty past eight 10, 8:00 :00-8. 7：a quarter to five 9

six o'clock seven fifteen a quarter to twenty-two half past eight ten past twenty-three