經(jīng)典句型:Traveling by bus is so convenient. 乘公交車很方便。
A:I will go to work by bus tomorrow.
甲:明天我要乘公交車上班。
B:Why don't you drive to work?
乙:為什么不開車上班了呢?
A:Traveling by bus is so convenient.
甲:乘公交車很方便。
B:Don't you think it wastes time?
乙:你不認為很浪費時間嗎?
A:No.It's much faster than before.
甲:不。比以前快多了。

經(jīng)典句型:Traveling by bus saves money. 乘公交車很省錢。

A:Traveling by bus saves money.
甲:乘公交車很省錢。
B:Yes.It is much cheaper than driving a car.
乙:是的。比開車經(jīng)濟多了。
A:It also contributes to environmental protection.
甲:還有助于環(huán)保。

句型講解：
Save money意思是“省錢”，save是“節(jié)省”的意思。再如:save time省時，save for a vacation為假期攢錢。Contribute to意思是“有助于”。如:The arrangement will contribute to cement our pleasant relationship.此項安排有助于鞏固我們良好的關(guān)系。