approach 靠近，接近 John is approaching manhood.

appropriate 恰当的，相称的 Plain, simple clothes are appropriate for school wear.

approve 赞成，同意 I couldn’t approve his conduct.

approximate 大概的，大约的，近似的 The approximate time is 10 o’clock.

apt (习性)易于......的，有......倾向的 A careless person is apt to make mistakes.

arbitrary 随心所欲的，个人武断的，任意的 an arbitrary choice

arise 起立，起身 arise from one’s seat

arouse 使......奋发 A man like Tom will be aroused. Don’t worry.

array 排列，队形 The troops were formed in battle array.

articulate 发音清晰的，善于表达的 He is articulate about everything in the field of economics.

artificial 人工的，人造的，人为的 artificial price controls

ascend 登高，(渐渐)上升，升高 The airplane ascended into the cloud.

ascertain 查明，弄清，确定 I ascertained that he was dead.

ashamed 惭愧的，羞耻的 I am ashamed for being so stupid.

ashore 向岸，向陆地 He swam ashore.

aside 在旁边 We stood aside to let her pass.

assault 攻击，袭击 We made an assault on the enemy fort.

assemble 集合，召集 assemble the members of Parliament for a special meeting.

assert 肯定地说(出)，坚定地断言 He asserted his innocence.

assess 估价，评价，评论 assess the present state of the economy

assign 分配，布置(作业) The teacher assigned (us) a new lesson.

assimilate 吸收，消化 He is quick to assimilate new ideas.

associate (使)联系，(使)结合 We naturally associated the name of Darwin with the doctrine of evolution.