I find idioms and useful expressions hard to learn.

我发现习语和有用的短语很难学。

I find it hard to learn idioms and some useful expressions.

我们发现习语及一些有用的短语很难学。

Learning new words and useful expressions is very important for me.

进修新单词和有用的短语对我来说都很次要。

Read our list of useful expressions to use in life's special and serious situations.

看一看我们列出的实用表达法，可以在生活中的特殊或者严肃的场合派上用场。

My grammar is improving, but I find idioms and useful expressions hard to learn.

我的语法学习在提高，但是我觉得习惯用语和有用词语很难学。

In this period, we will learn and practise some useful expressions at breakfast.

这一期我们将一起练习一些早餐时常用的口语表达方式。

Ok, so much for the reflexive pronouns. Now let's learn some useful expressions.

关于反身代词我们就讲到这里，现在我们来学习一些交际用语。

Today I want share some simple but useful expressions about the word cool in our English.

今天我想和大家一起分享关于cool这个单词在英语口语中简单实用的表达方式。

We've compiled some useful expressions to use in life's special and serious situations.

我们按照生活中特别的和严肃的场景使用不同的有用的表达方式。

My advice for you would be: do some more readings in your leisure time, learn some useful expressions.

我对你的意见是：在您的闲暇时间做一些更多的读数，学习一些有用的词汇。

In this period, we'll go on learning and practising some useful expressions about booking a room in a hotel.

这一期我们将继续学习并练习在旅店预定房间的一些表达方式。

I hope all the English lover will come here to help me finding some mistakes, and give me some useful expressions.

希望所有英语爱好者，前来帮忙找错误，也可以帮我找一些更好的表达方式。

In the following short dialogs you will find some useful expressions which are often used on various social occasions.

在以下简短的对话里，你可以找到一些在日常社交场合中常遇到的用语。

In this session, we are going to learn some useful expressions when meeting friends at the airport or the railway station.

这节课我们将学习去机场或者车站接朋友时可能用到的一些表达。

We also derive out some useful expressions, such as electron bunching, beam-wave interaction power and gain, and carry out some discussions.

文中求得了相应的电子群聚、注一波互作用功率及增益的表达式，并进行了讨论。

Lastbut not the least, we had better remember some useful expressions and languagepoints, because it can help us to form a sense of language.

最后但并非最不重要的，我们最好记住一些有用的词汇和知识点。 因为它可以帮助我们形成语感。

Second. Remember useful expressions, and ensure accurate and correct. The common language of communication to memorize, common makes perfect.

第二。熟记常用语，确保准确无误。把常用的交际用语背熟，俗能生巧。

Last but not the least, we had better remember some useful expressions and language points, because it can help us to form a sense of language.

最后但并非最不重要的，我们最好记住一些有用的词汇和知识点。因为它可以帮助我们形成语感。

You should be able to talk about your own feelings towards your job, and give reasons for your attitude according to some useful expressions below.

根据下面那些表达，你可以谈你对工作的感受，并给出你的态度。

D. C. and A. C. characteristics of non-ideal operational amplifiers are examined from a general viewpoint, and a set of useful expressions and conclusive results are obtained.

本文从普遍性的意义上讨论了非理想运算放大器的交、直流性能，给出了一系列有用的公式和结论。

Reading is a great way to improve your English. You'll learn new words, revise previously-taught structures and absorb thousands of useful expressions and phrases... without any effort.

阅读是一个提高你的英语的绝佳方式。你会学到新单词，修正先前学到的结构和汲取成千上万的有用的短语和词组……不用任何努力。

Finally, it points out that it is necessary to master some commonly used transitional words and some useful expressions for paragraphs beginning in order to make them natural, coherent and logical.

继而阐述了段落的组成、段落的写作原则以及为写好段落和文章必须掌握的过渡性词语和表达法。

A regular expression doesn't have to contain wildcards, but wildcards can make regular expressions useful for searching for patterns and manipulating files.

正则表达式不一定包含通配符，但通配符可以使正则表达式在搜索模式和处理文件时发挥更大的作用。

Later examples in this article show that TRANSFROM expressions in queries can also be useful to remove certain elements or attributes from the document, or to expose elements under a different name.

本文后面的示例还说明查询中的转换表达式可以从文档中删除某些元素或属性，或者修改元素的名称。

Therefore, the next task is to provide some kind of graphical interface in XHTML and PHP, which you can do by adding useful forms to generate powerful Scilab expressions.

因而，下一个任务是用XHTML和PHP提供某种图形界面，为了实现这个目的，可以添加有用的表单来生成功能强大的scilab表达式。

I hope you will find W3Eval to be a useful online tool for evaluating expressions in a way that is more natural than the classical method.

我希望您会发现W3Eval是个对表达式求值有益的在线工具，它在某种程度上比经典的方法更简单自然。