我们从同义词与例句用法角度去剖析和理解这个词汇，写作必备词汇，托福或雅思是语言测试，并非智商测试，所以，我们要努力证明自己的学术英语表达能力足够应付国外的英语课堂和英语写作；切记本末倒置，不要一味地追求逻辑表达，用简单的逻辑论证表达清楚一个观点就足以。
① apt:
/pt/ a.
同义词：appropriate; suitablelikely; exactly suitable; appropriate; quick to learn or understand
例句：The defeated England coach, Bobby Robson, described it as a miracle, which following 'the Hand-of-God' goal seems supremely apt.
② arbiter:
/'ɑrbt(r)/ n.
同义词：judgea person with power to decide a dispute; judge例句：As an arbiter in labor disputes, she has won the confidence of the workers and the employers.
③ arid:
/'rd/ a.
同义词：dry; barrendry; lacking moisture, especially having insufficient rainfall to support trees or plants例句：The cactus has adapted to survive in an arid environment.
④ articulate:
/ɑr'tkjlt/ a.
同义词：effective; distinctexpressing oneself easily in clear and effective language例句：Her articulate presentation of the advertising campaign impressed her employers.
⑤ assiduous:
/'sdjs/;/'sds/ a.
同义词：diligent; persistentconstant in application or attention; diligent; unceasing or persistent例句：He was assiduous, working at this task for weeks before he felt satisfied with his results.

⑥ atheist:
/'eθist/ n.
同义词：nonbelievernonbeliever; one who denies the existence of god例句：The view that children are born atheist is relatively recent.
⑦ augment:
/:g'mnt/ v.
同义词：increasemake greater, as in size, extent, or quantity例句：Armies augment their forces by calling up reinforcements.
⑧ authentic:
/r'θntk/ a.
同义词：genuine; real; valid; trustworthynot counterfeit or copied; valid; trustworthy例句：It is authentic, genuine, and a true and correct copy of the original.