at a low cost 低成本 at a great cost 花了很大代价 at that time 在当时
Evaporation takes place at all temperatures. 蒸发在任何温度下都能发生。 at 1000 RPM (revolution per minute) 每分钟1000 转 at a high speed 高速
The soldiers launched an attack upon the enemy at sunset. 战士们在日落时对敌人发起了攻击。 at daybreak 日出时
The force at the core leading our cause forward is the Chinese Communist Party. 领导我们事业的核心力量是中国共产党。
The atom has a nucleus at its core. 在原子的中心有一个原子核。
At the beginning of this term the teacher in charge of our class was very strict with us. 这学期开始，我们的班主任老师对我们要求非常严格。
以及 At the first session of the First National People's congress of the People's Republic of China. 在中华人民共和国第一次全国人民代表大会第一次会议上. 常用的 at 短语有: at first 首先，开始时 at least 至少 at all events 无论如何 at home 在家，无拘束 at one stroke 一下子
at a loss 不知怎办 at any rate 不管怎样 at length 详细地
be at high tide 处于高潮期 at our invitation 应我们的邀请 at our request 应我们的请求 at the news 听到这消息 at the risk of 冒……危险 at a great expense 以巨大费用 at a stroke 一举 at intervals of 每隔 at liberty 有权，随意 at the sight of 一见到 at the point of 接近，靠近 at the thought of 一想到 at the speed of 以……速度 at the cost (price) of 以……为代价 at leisure 闲着、失业
at the disposal of 任凭……使用 at stake 在危险中、在成败关头 at bottom 实际上、本质上 at short notice 一得到通知
at seeing us 看到我们 at the happy tidings 听到喜讯 at sixteen 在16岁时 at the present stage 在现阶段 at the weekend 周末 at all times 永远
at 405 Victory Road 在胜利路405号
工具、同、和、随 with，具有，独立、就、原因 例：We write with ball pens. 我们用油笔写字。(工具)
但 He write in blue ink. 他用蓝水笔写字(墨水用 in 不用 with)
Theory must go hand in hand with practice. 理论必须同实践相结合。(同) He is talking with friends. 他正同朋友们谈话。(同)
I'd like to have a dinner with a friend. 我喜欢同朋友共同进餐。 We must co-operate closely with them. 我们必须同他们紧密合作。(同)
We, as human beings are going to leave, but friendship has taken roots among us and our hearts are linked with yours. 我们虽然就要走了，但是友谊却在我们之间扎了根，我们的心和你们的心是紧紧相连的。(和或同〕
A cadre must become one with the masses.干部必须和群众打成一片。 I'm with you. 我同意你。
An atom is so small that we can't see it with a microscope. 原子太小，即使用显微镜也看不见它。(工具)
In the past I had to part with my wife. 旧社会我不得不和妻子离别。(和)
The socialist revolution is deepening with each passing day. 社会主义革命日益深入。(随着)
They sail with the wind. 他们顺风航行。(随着)
With the change of the economic foundation, the superstructure has to be transformed too. 随着经济基础的改变，上层建筑也必须改变。(随着)
With the battle of Waterloo, Napoleon's rule in Europe was ended. 滑铁卢一战，拿破仑对欧洲的统治就完蛋了。
The modern electron tube. 随着电子管的发明而诞生了现代电子工业．
She is with child. = She is in a very interesting condition. = in a family way, = She is pregnant (in pregnancy). 她怀孕了。(有)
但 She is with a child．意为:“她领着一个孩子。”
China is a very large country with a long history. 中国是一个历史悠久的大国。(具有) China is a country with a population of ten billion people. 中国是一个有10 亿人口的国家。（具有） What is the matter with you? 怎么回事?(就，关于) How is it with you? 你怎么啦？(就，关于)
Everything was going well with them. 他们一切都进行得很顺利。(就……) It is a very intense flash with a lot of power packed into it. 由于聚集了大量的能，所以闪光非常强烈。（独立结构） 注；即分词独立主格结构用 with。
With a new welding technique introduced, the use of stainless steel was no longer limited to making small things only. 由于新的焊接技术的引进，不锈钢的使用就不仅仅局限在微小的物件上了。(独立结构)
With all its beams advancing in step with each other the laser possessed very particular properties which no ordinary light ever has. 由于激光的光束同步，所以它具有普通光所没有的特殊性质。(独立结构)
Without the temperature or pressure changed matter can never change from one state into another. 没有温度或压力的变化，物质永远不能以一种状态变到另一种状态。(独立结构) The evil landlord was trembling with fear. 那个万恶的地主吓得浑身发抖。(原因) My wife's hands were rough with work. 我爱人因为老干活，手很租糙。(原因)． With the help of my classmate's tape recorder I listen to the Voice of America and B.B.C every day. 借助于我同学的录音机，我每天收听美国之音和B.B.C。(原因)
With television, we can see all kinds of programmes on the screen sitting at home without going to the movies and theatres. 因为有了电视，我们坐在家里就能看到各种节目, 而不必去影院、戏院了。(原因)
就……来说宾译主，对、有、方状、表细分 这里的 with 后边的宾语常译成主语。 例：How are the things with you? 你情况怎样？ What's wrong with your eyes? 你的眼睛怎么啦? Something is wrong with my hands. 我手出点毛病。
Everything was going well with them. 他们一切都进行得很顺利。 Parents must be strict with their children. 父母对子女要严格。(对)
The doctor was very patient with his patients. 那位医生对患者非常耐心。(对)
介词用法口诀大全
