It's not seven thirty
七点半───half past seven;没有───No,
Classes start at half past seven.───七点半钟开始上课。
It's half past seven.───现在七点半。
He signed on at half past seven.───他于七点半签到上班。
What time did she have breakfast yesterday? She had breakfast at half past seven. . .───昨天她什么时候吃早餐?她七点半吃早餐。
Afternoon tea is from four to five in the afternoon, and dinner is at about half past seven.───午茶在下午的四点到五点,晚饭在大约七点半。
It was half past seven in the evening when at last, exhausted, he heard Aunt Petunia calling him.───一直到晚上七点半,才终于听到佩妮姨妈喊他,他已经精疲力竭。
Dinner is at eight, so come at about half past seven.
At half past seven I put some water on to have a shave.
I went to school at seven o'clock this morning although I don't belong to go to school until half past seven.