aid ，assist ，help
aim n.目标，瞄准；vi.(at , for)目的在于…，瞄准；vt.把…瞄准[语境]He aims at being /to be a lawyer.他想当个状师。
air n.空气，神态，天空；vt.(使)透风，晾干by air 乘飞机up in the air 悬而未决，慌乱in the air 流传中[语境]Air is a medium for sound.空气是声音的传播媒介。
The sheets were aired on the line.床单都晾在绳上。
[语境]She is alert to every sound and movement.她对每一个声音和动作都很警觉。
The doctor alerted me to the danger of the heart attack.年夜夫提醒我把稳心脏病产生发火的危险。
alike adj.相同的，相似的；adv.同样地，相似地alike 作adj.只能作表语，不可作定语 (不能用在名词前)，前面不能用very，只能用much或very much
[语境]The sister s are as alike as two peas.两姐妹长得千篇一律。(比较级的原级比较，as+原级+as)The two sisters look exactly alike.两姐妹看起来如此相似。No two people think alike.没有两个人的想法是一样的。alike，like，likely
alive adj.活着的，存在的，生动的，(to)敏感的表语形容词，不可作定语(不能用在名词前)
[语境] The injured man is unconscious but still alive.受伤的人不省人事，但还活着。Although he is eighty , he is stil very much alive.他虽八十岁了，但仍旧充满活力。alive , live , living
all adj.全部的，只管即便的，极度的；adv.完备地；prop. (代词)全部above all 首先，尤其是after all 毕竟，终极，究竟all but 险些，差不多，除了…都all in all 从各方面说，总的说来all over 到处，遍及，总的来说at all [用于否定] 险些，差一点in all 统共，合计[语境] Don't be so strict with him. After all , he is still a child.别对他太严厉了，毕竟他还是个孩子。He is all but dead.他切实其实是个去世人。He looked all over for the lost book.他到处找那本丢了的书。He is not at all stupid.他一点儿也不傻。allow vt.许可，答应，承认，给予allow for 考虑到，顾及，为…留出余地allow of 容许；容许allow sb. to do sth.allow doing sth.[语境] Swimming is not allowed at this beach.这片海滩禁止拍浮。A ture democracy allows free speech.真正的民主国家许可辞吐自由。allowance n.津贴，补贴，零用钱ally n. 同盟国，支持者；v.(使)缔盟，(使)联合almost adv.险些，差不多[语境]It is almost impossible to skirt the knotty problem.想回避这个棘手的问题险些是不可能的。
alone adj.单独的，孤独的，唯一的；adv.单独地，仅仅，独自地leave alone 不打扰，不惊动let alone 不打扰，不惊动，更别提all alone 独自一人，孤零零地[语境]Peace alone could not bring bread to the masses.和平自身并不能给大众带来必需的食品。Leave me alone.别管我。alone，lonely
along adv.向前地，一道，一起；prep.沿着，顺着all along 始终，一贯along with 和…一道[一起]，除…之外(还)[语境]Ivy creeps along the fence.常春藤攀着竹篱成长。
alongside adv.在阁下，沿着边，并排地；prep.在…阁下，沿着…的边，和…在一起aloud adv.出声地，大声地read aloud 朗读[语境]The English teacher stressed the importantce of reading aloud.英语老师强调了朗读的主要性。
already adv. 早已，已经
[语境]This plant is already conditioned to the northern climate.这一作物已经适应北方景象。
also adv. 而且(也)，此外(还)，同样地as also 同样(也)，还是(又)
[语境]The president is also the chief of the armed forces.总统也是三军的统帅。
alter vt.改变，变更alterable adj.可变的，可改的alterability n.可变更性，可变动性[语境]Circumstances alter cases.[谚]详细情形详细剖析。I'll have to alter the diagram. I've made a mistake.我得修正图表，我出了点儿错。alternative n.二选一，供选择的东西，取舍；adj.二选一的alternative = alternate (v.交错) + ive = 交替着上(不能同时上) = 两者择一have no alternative but 除…外别无选择[语境]They had no alternative in the matter.在这件事上，他们没有选择的余地。
although conj.(连词)只管，虽然…但是[语境]Although there is a parliament , the army is in effective control of the country.虽然有会议存在，但军队实际上掌握着这个国家。
altitude n. 高度，海拔；pl.(复数)高处，高地[形] attitude 态度
altogether adv.完备，全部地，统共，总而言之for altogether 永久地，一劳永逸地
[语境]Altogether , exports are looking up.总而言之，出口贸易在好转。
always adv.总是，无例外的，永久，始终[语境]We always trust in her cautiousness.我们对她办事谨慎一向是相信的。
June 20th，2021