I've worked very hard to pass this exam—luck doesn't come into it.
我为通过这次考试下了很大的苦功，运气不是主要的。
Now, I am interested in all the subjects and work very hard to learn them well.
现在，我对所有的科目都感兴趣，并且非常努力地学习它们。
However, it is very hard to demonstrate causes using non-experimental data such as this.
然而，使用诸如此类的非实验数据来证明原因是非常困难的。
I'm finding his latest novel very hard going.
我觉得他最近的这部小说很晦涩。
The judiciary must think very hard before jailing nonviolent offenders.
司法部在把非暴力罪犯投入监狱之前一定要慎重考虑。
The shampoo lathers and foams so much it's very hard to rinse it all out.
这种洗发水起泡太多，很难冲干净。
He had been working very hard so he had no qualms about taking a few days off.
他一直辛勤工作，所以休息几天他觉得心安理得。
We had to battle very hard and our defence worked overtime to keep us in the game.
我们只得苦战，我们的防守队员全力以赴确保我们不被淘汰。
It can be very hard to think rationally when you're feeling so vulnerable and alone.
在你感到如此脆弱和孤单的时候很难理性地思考问题。
He had to feed his family on the equivalent of seven hundred dollars a month and, with five mouths to feed, he found this very hard.
他每月不得不用相当于700美元的钱来养家，5张嘴等着吃饭，他觉得很困难。
记者工作非常努力。
She's very hard-working and serious.
她非常勤奋和认真。
They work very hard for each grain.
他们为每一粒粮食辛勤劳作。
He became responsible and worked very hard.
他变得有责任心，很努力工作。
He studied very hard when he was young.
他年轻时学习很刻苦。
She worked very hard and played better and better.
她非常努力地学习，并且弹得越来越好。
He studied very hard and always got good grades.
他学习很努力，总是取得好成绩。
She managed to enter college and studied very hard.
她考上了大学，学习很努力。
It is very hard to find a white one.
很难找到白色的。
You will often find some of your lessons very hard.
你常常会发现一些功课很难。
My good friend Han Meimei is a very hard-working girl.
我的好朋友韩梅梅是一个很勤奋的女孩。
Sometimes, it is very hard for them to stand outside influences.
有时候，他们很难忍受外界的影响。
He was not a very hard-working student when he was young.
他年轻时不是一个很用功的学生。
He worked very hard with other scientists on it for many years.
他与其他科学家一起为此努力工作了许多年。
She always works very hard, and expects others to do the same.
她工作总是很努力，并希望别人也这样做。
He grew crops (庄稼) in a big field very hard every day.
过去，他每天都在一大片田地里勤奋地种庄稼。
Many teens find it very hard to pull themselves away from these devices.
许多青少年发现自己很难与这些设备保持距离。
The students in my school are thirsty for knowledge and are very hard-working.
我校学生求知若渴，并且非常勤奋。
She lost her job two years ago and they lived a very hard life.
她两年前失去了工作，他们的生活非常艰难。
Some people have good abilities and others work very hard, but they may fail.
有些人能力强，也有些人工作很努力，但他们可能会失败。
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