a bad quarter of an hour
n. 不愉快的短暂时刻

a mite on an elephant
n. 九牛一毛

a nasty quarter of an hour
不愉快的短暂时刻

a pill to cure an earthquake
n. 软弱的措施, 不彻底的办法

a Roland for an Oliver
n. 势均力敌, 以牙还牙

A proper part-time job does not occupy students'too much time. In fact,it is unhealthy for them to spend all of time on their study.As an old saying goes:All work and no play makes Jack a dull boy.
一份适当的业余工作并不会占用学生太多的时间，事实上，把全部的时间都用到学习上并不健康，正如那句老话：只工作，不玩耍，聪明的孩子会变傻。

A recent survey revealed large disparities in the income levels of male and female workers holding the same position . The determining factor should be qualifications,rather than gender,when determining both the salary and position of an individual .
最近的一项调查表明在同样职位上的男性与女性工人的收入水平存在差异。在决定工人工资和职位的时候，决定因素应该是资格，而不是性别。

Although many experts from universities and institutes consistently maintain that it is an inevitable part of an independent life,parents in growing numbers are starting to realize that people,including teachers and experts in education,should pay considerable attention to this problem.
尽管来自高校和研究院的许多专家坚持认为这是独立生活不可避免的一部分，然而越来越多的家长开始意识到包括教师和教育专家在内的人们应该认真对待这一问题。

An advantage of using the solar energy is that it won't create any pollution.
使用太阳能的优点是它不会产生任何污染。

An automobile is a complicated apparatus.
汽车是台复杂的机器.