a roaring success
释义：something that is very successful 巨大的成功
例句：The party was a roaring success. 聚会开得非常成功。
a rolling stone (gathers no moss)
释义：said to mean that a person who is always travelling and changing jobs has the advantage of having no responsibilities, but also has disadvantages such as having no permanent place to live 滚石不生苔，来去真自在（表示经常在外游荡或老换工作的人可以不用担负责任，但是也居无定所）
例句：Hal was a bit of a rolling stone before he married and settled down. 哈尔以前生活有些漂泊不定，直到婚后才安顿下来。
a roof over your head
释义：a place to live 住处；栖身之处
例句：She gave him enough money to get a roof over his head. 她给他的钱足够他找个住处了。
a rough ride
释义：a difficult time 一段困难时期
例句：Government plans to cut sick pay had a rough ride in the House of Commons. 政府削减病假工资的计划受到了下议院的阻挠。
a shot in the arm
释义：something that has a sudden and positive effect on something, providing encouragement and new activity 刺激因素，兴奋剂
例句：Fresh investment would provide the shot in the arm that this industry so badly needs. 新的投资对该行业来说不啻是雪中送炭。
a sight for sore eyes
释义：a way of saying that you are very pleased to see someone or that you think someone is very attractive 乐于看到的人；极有吸引力的人
例句：You're a sight for sore eyes! 非常高兴见到你！
a snowball effect
释义：a situation in which something increases in size or importance at a faster and faster rate 雪球效应（这种情况下，某物的大小或重要程度以越来越快的速度增加）
例句：The more successful you become, the more publicity you get and that publicity generates sales. It's a kind of snowball effect. 你越成功，你的媒体曝光度也高，这种曝光度可产生销售额。这是一种雪球效应。
a spring in your step
释义：If you walk with or have a spring in your step, you walk energetically in a wa原由网y that shows you are feeling happy and confident. 步伐轻快；（走路）轻松自信
例句：There's been a definite spring in his step ever since he met Joanna. 自从他遇见乔安娜之后，走起路来步伐都轻快了。
a step backwards
释义：going back to a worse or less developed state 退步，倒退
例句：The changes that have been introduced are being seen as a step backwards. 引入的这些变革被视为一种倒退。
a step forward
释义：an improvement or development 进步，改进
例句：No one is sure whether this plan will work, but it's a step forward. 没人说得清这个计划是否会奏效，但它确实是一个进步。
a thing of the past
释义：something that no longer happens 往事
例句：Giving up your seat to an older person seems to be a thing of the past. 现在好像很少有人给老人让座了。
a thing or two
释义：some matters, facts, or information 一些事情；些许知识，一星半点
例句：I'm having trouble paying attention - I have a thing or two on my mind. 我现在很难集中注意力——我心里有事。
a tough/hard nut
释义：someone who is very unpleasant and difficult to deal with 讨厌的家伙；难对付的人
例句：As a teenager, Jack was a real hard nut, always getting into fights. 十几岁的杰克很难管教，总是跟人打架。
a turn of the screw
释义：an action that makes a bad situation worse, especially one that forces someone to do something 进一步施加的压力
例句：Each letter from my bank is another turn of the screw. 我的银行经理的每一封来信都给我带来更大的压力。
a whale of a
释义：used to refer to a very great amount of something or a very good thing 极多的；极大的；极好的
例句：That's a whale of a story. 那个故事棒极了。
a whole new ballgame
释义：a completely different situation, often one that is difficult or that you know little about 完全不同的情况，完全是另一回事儿（尤指难事或自己知之甚少的事情）
例句：We'd done a lot of climbing in Scotland but the Himalayas were a whole new ballgame. 我们之前在苏格兰登过不少山，但攀登喜马拉雅山则完全是另一回事儿。
(a) sort of
释义：used to describe something approximately 有点像，近似于
例句：It's a sort of pale orange colour. 那近乎浅橙色。
a/one hundred percent
释义：completely 完全地；百分之www.58yuanyou.com百地
例句：I agree with you one hundred percent. 我百分之百同意你的意见。
accidentally on purpose
释义：If you do something accidentally on purpose, you do it intentionally but pretend it happened by chance. 明明故意却装出无心的样子；假装不是故意
例句：I've never liked these glasses of Peter's. I might drop them o//www.58yuanyou.comne day - accidentally on purpose. 我从来就不喜欢彼得的这副眼镜，或许什么时候我会假装无意把它给摔了。
across country
释义：travelling in a direction where roads or public transport do not go, or where main roads or railways do not go 乡间旅游（在一些没有大路和公共交通设施的地方旅游）
例句：Getting a train across country from Cambridge to Chester can be difficult. 搭乘火车在剑桥和切斯特之间进行乡间旅行可不容易。
across the board//www.58yuanyou.com
释义：happening or having an effect on people at every level and in every area 影响到各个领域和阶层的；全面的
例句：The improvement has been across the board, with all divisions either increasing profits or reducing losses. 情况全面好转，所有的部门不是盈利增加就是亏损减少。
act/play the goat
释义：to behave in a silly way 做傻瓜；干蠢事
例句：Stop acting the goat! 别再干蠢事儿了！
add fuel to the fire
释义：to make www.58yuanyou.coman argument or bad situation worse 火上浇油
例句：The discovery that the government was aware of the cover-up has really added fuel to the fire. 人们发现政府对这起隐瞒事件早已知情，这真是火上浇油。
add salt to sth
释义：If you add salt to a subject or conversation, you make it more interesting. 使更有趣（如果你给某一主题或对话“加盐”，表示你使它更有趣）
例句：You can be sure she'll always add salt to the conversation! 你可以确信，她总是使对话更有趣。
