外研版 七年级 英语 上册module3 unit 1there are thirty students
表示时刻 指在几点或几点几分 如 atseven seveno clockatseventhirty
it's five thirty . it's half past five.
0039 zero point zero zero thirty -nine 63,503,456 1.
数词:one two three eight nine thelve nineteen twenty thirty-five