重點講解：
1. used to do sth. 過去常常；過去曾；
He used to be one of the professors at the School of Education.
他曾是教育學院的一名教授!oKA%u;rHk|,HSww=M。
2. go shopping 購物；
I live just by the market, and it's very convenient to go shopping.
我家就住在商場旁邊，買東西很方便u23)gpJpY,0。
3. finish doing sth. 結束；做畢；
After finish reading the book, everyone seems to have a little experience with the exotic trip, experienced a spiritual growth.
看完這本書之后，每個人似乎都隨著小作者親歷了一次異國之旅，經歷了一次心靈成長之路~x6gizdK;yG=|es。
4. from now on 從現在開始；
It's getting colder and colder from now on.
往后的天氣越來越冷了a=AE|Ctc@+CG_。