atlas N. /地图集/a bound volume of maps, charts, or tables. Embarrassed at being unable to distinguish Slovenia from Slovakia, George W. finally consulted an atlas.
atone V. /补偿;偿还/make amends for; pay for. He knew no way in which he could atone for his brutal crime.
atrocity N. /暴行/brutal deed. In time of war, many atrocities are committed by invading armies.
*atrophy N. /萎缩，变得没用/wasting away. Polio victims need physiotherapy to prevent the atrophy of affected limbs. alsoV.
attain V. /获得;完成/achieve or accomplish; gain. The scarecrow sought to attain one goal: he wished to obtain a brain.
attentive ADJ. /专心的，专注的;全神贯注/alert and watchful; considerate; thoughtful. Spellbound, the attentive audience watched the final game of the tennis match, never taking their eyes from the ball. A cold wind sprang up; Stan's attentive daughter slipped a sweater over his shoulders without distracting his attention from the game.
attenuate V. /削弱/make thin; weaken. By withdrawing their forces, the generals hoped to attenuate the enemy lines.
attest V. /证明/testify, bear witness. Having served as a member of the Grand Jury, I can attest that our system of indicting individuals is in need of improvement.
attribute N. /属性/essential quality. His outstanding attribute was his kindness.
attribute V. /归因于;解释/ascribe; explain. I attribute her success in science to the encouragement she received from her parents.
attrition N. /裁员;磨损/gradual decrease in numbers; reduction in the work force without firing employees; wearing away of opposition by means of harassment. In the 1960s urban churches suffered from attrition as members moved from the cities to the suburbs. Rather than fire staff members, church leaders followed a policy of attrition, allowing elderly workers to retire without replacing them.
atypical ADJ. /非正常的，不正常/not normal. The child psychiatrist reassured Mrs. Keaton that playing doctor was not atypical behavior for a child of young Alex's age. "Yes," she replied, "but not charging for house calls!"
audacious ADJ. /大胆的;鲁莽的/daring; bold. Audiences cheered as Luke Skywalker and Princess Leia made their audacious, deathdefying leap to freedom, escaping Darth Vader's troops. audacity, N.
audit N. /核算，稽核/examination of accounts. When the bank examiners arrived to hold their annual audit, they discovered the embezzlements of the chief cashier. alsoV.
auditory ADJ. /听觉的/pertaining to the sense of hearing. Audrey suffered from auditory hallucinations: she thought Elvis was speaking to her from the Great Beyond.
augment V. /增长/increase; add to. Armies augment their forces by calling up reinforcements; teachers augment their salaries by taking odd jobs.
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