They study hard day and night.
他们白天黑夜的学习。
他们白天黑夜地学习。
They study hard, I am very glad.
用刻苦学习来回报我，我很欣慰！
Why didn't they study hard at English?
他们当时为什么不努力学英语呢？
他们学习努力。
They study hard. They do homework every day.
他们学习努力，他们每天做作业。
They study hard so that they will go into a good college.
他们努力学习以便他们能考入一个好的大学。
They study hard so that they can get a good result in exam.
他们努力的学习，以便考个好成绩。
They study hard and many of them have achieved remarkable success and won honour abroad.
他们在外努力学习，许多人取得了可喜的成就，赢得了荣誉。
They are pushed hard to study for good grades.
他们被督促努力学习以取得好成绩。
Her parents doesn't want her to practice singing because they think their daughter should study hard to get good grades and go to a good university.
她的父母不希望她练习唱歌，因为他们认为女儿应该努力学习，取得好成绩，上一所好大学。
IMMIGRANTS benefit America because they study and work hard. That is the standard argument in favour of immigration, and it is correct.
广大的移民之所以使美国获益，源于他们勤奋学习和和努力工作的态度——这是标准的亲移民派的说法，当然正确。
And while most of them can look forward to a fun time, a new study suggests that some die-hard fans will get more excitement than they bargained for.
大部分球迷可能在期待着一个快乐的时刻，一项最新调查也发现，一些铁杆粉丝将会得到比他们所期待的更多的激情。
They worked so hard to help us in study and life.
他们如此努力工作以帮助我们的学习和生活。
他们必须努力学习。
They do not study hard during the semester.
在本学期中他们不努力学习。
When it comes to study, hard problems never upset me, instead they arouse me.
当谈到学习，努力问题不会扰乱我，相反，他们唤醒我。
他们学习多努力啊！
They study English quite hard.
他们学习英语还比较用功。
Moreover, the students who study hard to prepare the exam will would to cheat on the next exam, because they don't want to work hard, either.
此外，那些努力准备考试的学生会尝试在下次考试作弊，因为他们也不想努力学习。
It is good for the children to own the big dream, so that they will study hard and fight for their future.
孩子有伟大的梦想是好的，这样他们就会努力学习，为他们的将来奋斗。
They must study hard because it is very important for undergraduates.
他们必须努力学习，知识对大学生来说，很重要的。
Scientists who study drug addiction have a common problem: The individuals they deal with are already addicted, so it's hard to tell what, if any, behaviors led to the initial dependence.
研究药物成瘾的科学家都会碰到同一个问题：他们的研究个体已经对药物成瘾，因此很难说得清到底是哪个行为导致了最初依赖性的形成。
But some people with disabilities are different, they were disabled, but they still work hard, study diligently.
但是有些残疾人却不同，他们虽然残疾了，但是他们还是努力，坚持不懈地学习。
They said they would study hard and live up to their parents' expectations.
他们说他们会努力学习，不辜负父母对他们的期望。
There are also some people who think that they are far superior to others in intelligence and therefore, do not need to study hard.
还有人认为自己远比他人聪明，因此无须努力工作，他们对于自己的成功太有把握。
Children no longer play truant, they seriously, study hard, love learning, love to create, love life.
小孩子们也不再逃学了，他们认真、努力读书，热爱学习，热爱创造，热爱生活。
Children no longer play truant, they seriously, study hard, love learning, love to create, love life.
小孩子们也不再逃学了，他们认真、努力读书，热爱学习，热爱创造，热爱生活。
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