aseptic a.无菌的 [anti-sept-ic抗菌药]
ashen1 a.灰色的
asinine2 a.愚鲁的 [asin= asinus驴子ASS+ine]
askance ad.斜视地
askew3 ad.斜地 [A+SKEW歪曲,歪斜,弯曲]
aslope a.ad.成斜坡;倾斜
asp n.毒蛇;埃及产眼镜蛇 [ME
aspen n.白杨;白杨似的;摇晃的 [earlier name asp + -EN forming adj. taken as noun asp毒蛇]
asperity4 n.暴力;艰苦 [ME
asperse5 v.诽谤 [aspersion中伤;洒水]
aspirant6 n.热望者 [F aspirant or
aspiration7 n.抱负 [ME
aspire8 v.热望,怀大志,切望 [ME
asquint a.ad.斜视;斜的 [ME perh.
assail9 v.攻击 [AD-, salire salt- leap]
assassin n.刺客 [F assassin or
assault n.忽然袭击;猛袭 [as+sault=sail]
assay10 v.剖析;试验 [ME
as百度竞价推广ble v.聚集 [
assent11 v.赞同;赞成 [ME
assert v.断言;倡导 [assertive 言语果敢的;断言的 assertion 倡导;断言,确言]
assess v.估定;定...额;评价;估价 [~ a tax at 10 pounds; ~ a statement at its true worth]
asset n.财产;可取之处 [as-set]
asseverate12 v.断言 [L asseverare]
assiduous a.勤勉的 [L assiduusassidulity勤勉,励精]
assimilate v.吸收 [ME
assize n.裁判;法定价格 [ME
assonance n.类音;类韵;母韵 [AD-, sonus sound]
assort v.分类;配齐;相交 [OF assorter
assuage13 v.平息;减轻 [ME
assumption n.担任;假设 [ME
assure v.确告 [assured自信的assurance自信;保证 reassure使安心]
astir a.ad.骚动;活动;开心 [A + STIR n.骚动；传播；时尚]
astound14 v.使...大吃一惊,惊愕 [obs. astound = astoned pp. of obs. astone: ASTONISH]
astral a.星的;多星的 [LL astralis
astray a.迷失方向的;误入歧途的 [a+STRAY走离]
Unit 4
astringent15 a.收敛性的;止血的 [stringent 严格的;严厉的]
astrolabe n.星座命盘
astrology n.星座占卜学 [ASTRO-, -LOGY]
astute16 a.机敏的;狡猾的 [obs F astut or L astutus
asunder17 ad.散开;碎散;分别 [OE on sundran into pieces: cf SUNDER分为二,分开,切开]