arabesque (ˌærəˈbɛsk) n

an ornament that interlaces simulated foliage in an intricate design【蔓藤图饰】

arable (ˈærəbəl)

ar（agriculture【农业】的异化）+able（形容词性，表示能...样的）字面意思即能用以进行农业的，即【可耕种的；适合种植的】

from Latin arābilis that can be ploughed, from arāre to plough

(Agriculture) (of land) being or capable of being tilled for the production of crops【适合种植的，可耕种的】

=cultivable, cultivatable, tillable，productive, fertile, fruitful, fecund, farmable, ploughable,arable farmland耕地

arbiter (ˈɑːbɪtə) n

someone chosen to judge and decide a disputed issue【泰斗】

=authority, expert, master, governor, ruler, dictator, controller, lord, pundit

arbitrary (ˈɑːbɪtrərɪ) adj

Determined or marked by whim or caprice rather than reason:【专横的，专断的】

=random, chance, optional, subjective, unreasonable, inconsistent, erratic, discretionary, personal, fanciful, wilful, whimsical, capricious Arbitrary arrests were common.随意逮捕很常见。

arbitrate (ˈɑːbɪˌtreɪt) v

act between parties with a view to reconciling differences【仲裁；公断】

=intercede, intermediate, liaise, mediate，adjudge, adjudicate, decide, decree,referee, rule, umpire. He arbitrates between investors and members of the association.他对投资方跟协会成员进行仲裁。

arboreal (ɑːˈbɔːrɪəl)adj

arbor（【树】）+eal（形容词性）：字面意思，跟树有关的

of or relating to or formed by trees【树木的】

=arborary, arborical, arborous

inhabiting or frequenting trees【居住在树里的或经常光顾树木的】

=tree-living

arboreal apes树栖类人猿

植树节： the Arbor Day

arboretum (ˌɑːbəˈriːtəm) n, pl -ta (-tə) or -tums

a facility where trees and shrubs are cultivated for exhibition

种植树木和灌木以供展览的设施，即【植物园】

arcane (ɑːˈkeɪn) adj

requiring secret or mysterious knowledge

=mysterious, secret, hidden, esoteric, occult, recondite, cabbalistic

arch (ɑːtʃ)

n

a curved shape in the vertical plane that spans an opening【拱形】

a passageway under a curved masonry construction【拱门】

=archway

v

form an arch or curve【使...成拱形】

adj

(used of behavior or attitude) characteristic of those who treat others with condescension

【（用于行为或态度）以居高临下的】

archaeology(ˌɑːkɪˈɒlədʒɪ)or archeology n

arche（表示【beginning】开始）+ology【学科】：关于开始的学科，联想到【考古学】

(Archaeology) the study of man's past by scientific analysis of the material remains of his cultures【考古学】

上述图片源自网络