Every voice can be heard cheaply and instantly.

　　每一個聲音都可以很容易的立馬被聽到。

　　Can it be made cheaply enough for poor countries?

　　其生產(chǎn)成本對貧困國家而言是否足夠低廉？

　　These firms could deal more cheaply and in greater size.

　　這些公司的進(jìn)入使得交易更便宜，規(guī)模更大。