astronaut n.航天员(90-6,01-6,02-6)
Astronauts have been known to develop motion sickness, too.(90-6)
athletic adj.运动的; 运动员的(05-1,,)
One of the major producers of athletic footwear, with 2002 sales of over $10 billion, is a company called Nike.
atmosphere n.大气
Phasing old bulbs out by 2030 would save the output of 650 power plants and avoid the release of 700 million tons of carbon into the atmosphere each year. (07-12)
attain v.达到, 获得(07-6)
All too often, it is the lack of action that ultimately holds people back from attaining their ideals.
attempt v./n. 尝试, 企图
Bowerman was also known for experimenting with the design of running shoes in an attempt to make them lighter and more shock-absorbent.
attent adj.注意的, 留意的
authority n.权威;威信(07-6)
auxiliary adj.辅助的
bacteria n.细菌(05-1)
ban v.禁止
The machines contain high levels of lead and other hazardous substances, and are already banned from California landfills .
barrier n.障碍(07-12)
Young blacks, whose unemployment rate stands today at 50 96, will find another barrier in front of them.(90-6)
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