可以放在句首 也可以放在句末
例如;At 8 o'clock in the morning of 1st,April,2010,please come to the no.188 room of no.188 of North Tianhe Road,Tianhe District,Guangzhou City,Guangdong Province,China.
Please come to the no.188 room of no.188 of North Tianhe Road,Tianhe District,Guangzhou City,Guangdong Province,China,at 8 o'clock in the morning of 1st,April,2010
希望能够帮到楼主