Mom! Math is hard! I am so bad at math and I don't have time to study!
妈妈！数学太难了！我数学不好啊！我没有时间学习啊！
我的数学课太难了。
It's hard to argue that supporting technical universities and basic math and science education is a wrong choice.
很难说支持科技大学，和基础数学和科学教育是一个错误的选择。
In Asia, it is believed that skills in math, for example, is not a talent but instead something that anyone can work hard to attain.
例如，在亚洲人们相信数学是技巧而不是天赋，任何人都可以努力而获得。
When you're taking a big math test, you know that your brain is hard at work.
在参加数学测验时，你知道自己的脑子正在全力运转。
Math is difficult but I study hard.
数学是很难的，可是我努力学习。
If the decision is between a seventh grader taking an extra math class to make him or her ready for algebra or taking an art elective, I would be hard-pressed to not pick the extra math class.
如果我是一个7年级生，要我在修一门额外的数学课程来为日后的代数课程做准备，和在修一门艺术课程里面做选择，那么我会感到巨大的压力如果我不选前者。
Upon the research on the whole electric power system, the robustness of fault diagnosis algorism is bad and it is hard to build practical math models for some objects.
在对整个电力系统进行故障诊断研究时，故障诊断算法的鲁棒性差且有些诊断对象不易于建立实际系统数学模型。
The good news is that my math teacher said I was hard-working.
好消息是我的数学老师说我学习努力。
Peter:>My math class is too hard!
彼得：我的数学课太难了。
The math problem is too hard. None of the students has finished doing homework.
这些数学题太难了，没有一个学生做完家庭作业。
Math is my weakness, so I must work hard to improve it.
数学是我的弱项，因此我必须努力提高它。
This math problem is hard to work out.
这道数学题很难解出来。
This math problem is so hard ! I don't get it .
这道数学题真的很难，我搞不懂。
Jane is hard sliding in her math course because she was poorly prepared.
珍妮的数学课真是寸步难进，因为她没有好好准备。
It is hard to build a precise math model for counter-gravity casting process for its time lag, uncertainty and complexity.
由于反重力铸造过程的时滞性、不确定性、复杂性，难以建立精确的数学模型。
The good news is that my math teacher said I was hard-working. And my Spanish teacher said my listening was good.
好消息来了，数学老师说我非常勤奋，西班牙语老师说我的听力非常好。
The good news is that my math teacher said I was hard working.
好消息是我的数学老师说我学习很努力。
The good news is that my math teacher said I was hard-working. And my Spanish teacher said my listening was good.
好消息来了，数学老师说我很勤奋，西班牙语老师说我的听力很好。
数学对我而言好难。
数学对我而言好难。
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