astronomy
n. 天文学
atmospheric
adj. 大气的,空气的,大气层的
aerial
adj. 大气所引起的
atmospheric disturbances 大气干扰
attachment
n. 附属,附着,附带;附属物,附件;友爱,深情,爱慕
have an attachment for sb. 对某人怀有深情
attachment to/ for 某物的附件;对某人爱慕;对某事忠诚;
attachment to a cause 对事业的忠诚
attendance
n. 看护,照料;到场,出席
attendance at the meeting 到会
n. 出席的次数
How many attendances has he made ? 他出席了几次?
n. 出席的人数
a large attendance at the meeting. 到会的人多
be in attendance on/upon sb. 护理某人,侍候某人
The major was in attendance upon the Queen. 这少校担任女王的侍卫。
attendant
n. 服务员,值班员,护理人员
attorney
n. 律师solicitor
n. 代理人agent
auto
n. 汽车
vi. 乘汽车 auto through the mountains 乘汽车经过山区
automate
vt. 使自动化
automate a plant 使工厂自动化
avail
v. 有利,有助
Money does not avail on a desert island. 金钱在荒岛上毫无用处。
benefit
n. 效用,利益,帮助
to no avail 无效地,无结果
without avail 无效地,无结果
avail sb. 有利于某人
Our efforts availed us nothing. 我们的努力均属无用。
avail against 对抵抗起作用
Nothing availed against the storm. 没有任何东西可以抵御暴风雨。
avail oneself of 利用
You should avail yourself of every opportunity to practise speaking English.
你应该利用每一个机会练习说英语。
availability
n. 可用性,有效性;可得到的东西或人
aviation
n. 航空,航空学,飞行术
axial
adj. 轴的;轴向的;
axis
n. axes
轴线,轴,中心线;枢椎,第二颈椎
axle
n. 轮轴,车轴
the back axle of a bus公共汽车的后车轴
bachelor
n. 单身汉,单身
a bachelor girl 自食其力的未婚女子
n. 学士
bechelor of Arts / Science 文/理学士
bacon
n. 咸肉,熏肉
badge
n. 徽章,证章;标记,标志,象征;symbol
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