VOA慢速英语:美国企业放眼太空

commercial – adj. related to the buying and selling of services or goods

executive – adj. related to the directing of people or things

geospatial – adj. the part of space near the earth

regular – adj. happening over and over again at the same time or in the same way

data – n. information that is collected for understanding something.

yield – n. the amount of product or crop that is produced

megabits – n. one million bits

opportunity – n. a good chance for improvement or progress

frontier – n. a distant area where few people live