慢速英语:'White Spaces' Gives Ghanaians Less Costly Internet

音频下载[点击右键另存为]

frequency – n., the number of times that something happens; the number of times that something is repeated (like a radio wave)

accelerate – v. to move faster; to gain speed

affordable – adj. something that can be paid for or done without any problems

commercialize – v. to make something available to individuals and businesses

initiative – n. a plan or program that is meant to solve a problem

Wi-Fi – n. a local area wireless network that allows an electronic device to participate in computer networking