cheap和cheaply的比较级分别为cheaper和more cheaply。cheap可作形容词和副词，含义为“便宜的”、“廉价的”、“价低质劣的”、“低价地”、“便宜地”；而cheaply作为副词，含义为“低廉地”、“廉价地”。
一、cheap的基本含义及用法介绍
1、作为形容词时，意为花钱少的;便宜的;廉价的;收费低廉的;价低质劣的。
例句：Personal computers are cheap and getting cheaper.
个人电脑现在价格便宜，以后还会越来越便宜。
I was tired of his cheap jokes at my expense.
我讨厌他拿我开低级庸俗的玩笑。
He's just a cheap crook.
他简直是个卑鄙的骗子。
Don't be so cheap!
别这么小气！
I'm going to live off campus if I can find somewhere cheap enough...
要是能找到足够便宜的地方，我就不在校园里住了。
Don't resort to cheap copies; save up for the real thing.
别买廉价的仿冒品，攒点钱买正品吧。
2、作为副词时，意为低价地;廉价地;便宜地。
例句：I got this dress cheap in a sale.
这件衣服是我在大减价时便宜买的。
At the same time, but also cheap to occupy the carrier flow pipeline.
同时，还廉价地占据着运营商的流量管道。
I was very lucky to get it so cheap.
我这么便宜地买到它，真是幸运极了。
二、cheaply的基本含义及用法介绍
cheaply只作副词，意为便宜地;廉价地;低廉地。
例句：I'm sure I could buy this more cheaply somewhere else.
我相信我能在别的地方更便宜地买到这种物品。
You can get there just as cheaply by plane.
你坐飞机到那儿同样便宜。
Are the investment banks selling cheaply, out of necessity?
投资银行是否完全不必要贱价出售？
You'd be hard put to it to make it more cheaply.
你会发现，很难比这价钱更便宜的了。
He seems to think he can buy us over very cheaply.
他们似乎认为可以轻易地收买我们。
