n.七点三十分
Can we get to school at around seven thirty? 我们七点半左右能达到学校吗?
I am goin to sleep at seven thirty. 男孩子们七点半在卧室里玩耍。
We serve breakfast from seven thirty to nine in the coffee shop. 我们从七时三十分到九时在咖啡厅内供应早餐。
The pick up time is seven thirty tomorrw morning,sir. 先生，出发时间是明天早上7点30分。
We get to work at seven thirty every morning and finish working at eleven thirty before noon.(a. M. 我们每天早上七点三十分开始工作,到十一点三十分结束工作。(午前)
