下午两点半我去操场上大课间。
I go to the playground at half past two in the afternoon.
At 2:30 in the afternoon I go to the playground for a big break.
I went to the playground for a big recess at 02:30 in the afternoon.
At 2:30 in the afternoon I went to the big class on the playground.
回答和翻译如下:
下午两点半我去操场上大课间。
I will go to the classroom at a half past two a'clock on the playground.