On the afternoon of July nd, I was traveling from Shanghai back to Shenyang by train
一大早，我們就出發了。
Early in the morning, we set out
明天上午 ： 我們在學校門口集中。
We will meet at the school gate at : tomorrow morning
前幾天，我和同學騎車進城。
The other day my classmates and I went to town together by bike
過去，我的家鄉是個美麗的地方。
In the past / Some years ago, my hometown used to be a beautiful place
上學期，我參加了地理小組的研究性學習。我們研究的課題是：環境污染與環境保護。
Last term I took part in a geography research study group
Our topic was environmental pollution and protection
今天下午，在我去看電影的路上，我看見一個箱子從一輛自行車上掉下來。