煤气比煤便宜。
A quarter carton of milk is cheaper than two single pints.
一夸脱的盒装牛奶比两盒一品脱的要便宜。
A return is cheaper than two singles.
一张往返票比两张单程票便宜。
This method has two advantages: first it is cheaper and second it is quicker.
这个方法有两个优点：一是更便宜，二是较快。
A motorcycle is cheaper to run.
开摩托车比较便宜。
Film is cheaper than opportunity.
胶卷比机会便宜。
The train is cheaper than flight.
乘火车比坐飞机便宜。
Take the blue one, it is cheaper.
拿那个蓝的，它便宜些。
The computer is cheaper and cheaper.
计算机越来越便宜。
This shirt is cheaper than that one.
这件衬衣比那一件更便宜。
Again, America is cheaper and easier.
再一次，美国签证更便宜更容易。
What is bought is cheaper than a gift.
买来的东西总比送来的便宜。
Which is cheaper, this one or that one?
哪一个比较便宜，这个还是那个？
If you buy a set, the price is cheaper.
如果您买一套的话，价格可以便宜。
How about this blue bike? It is cheaper.
这辆蓝色的自行车怎么样？它便宜些。
Rail travel is cheaper than air travel .
乘火车旅行要比乘飞机便宜。
I travel economy class because it is cheaper.
我坐经济舱旅游是因为便宜。
Service is better , but the price is cheaper.
服务质量更好，服务价格更低。
This kind of dictionary is cheaper than that kind.
这种词典比那种词典便宜。
It is cheaper than booking it through the operator.
要比通过接线员预订便宜。
It is cheaper to drill for oil on land than at sea.
在陆地上开采石油比在海上要便宜。
I like it, but your comic book is cheaper than mine.
我喜欢它，但是它比我的书便宜。
At $5 it is cheaper than a taxi and nicer than the subway.
5美元的票价比坐出租车便宜，环境也优于乘地铁。唯一的遗憾是不接受座位预定。
Develop renewable energy that is cheaper than coal re.
开发比煤炭更便宜的再生能源。
Develop renewable energy that is cheaper than coal re.
开发比煤炭更便宜的再生能源。
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