地震使尼泊尔砖窑上的空气变黑

notorious – n. well-known or famous especially for something bad

efficiency – n. the ability to do something or produce something without wasting materials, time, or energy

zig-zag – adj. a line that has a series of short, sharp turns or angles

adopt – v. to take up; to accept and put into effect

source – n. the cause of something; something that provided what is needed