It is a subject of study by many forgers.
这是许多伪造者研究的课题。
你可以自学。
我通过制作单词卡片来学习。
I study by myself for an hour.
我自己学习了一个钟头。
I study by working with a group.
我是通过小组活动来学习的。
I study by reading the textbook.
我研究通过阅读教科书。
I study by working with a group.
我通过小组活动来学习。
I work by day and study by night.
我白天工作，晚上学习。
I study by asking teacher for help.
我是通过向老师求教而学习的。
我自己可以提。
I study by asking the teacher for help.
我学习向老师寻求帮助。
In my spare time, I study by distance learning.
在我业余时间，我通过远程教育来学习。
We did cover this study by browser maker Opera last year.
去年我们对浏览器厂商Opera发布的一项研究报告做过报道（link）。
With the teacher ill, we have to study by ourselves.
由于老师生病了，我们不得不自学。
You not will want on to study by oneself early tomorrow?
明天你不是要上早自习么？
A new study by two economists tells a very different tale.
然而两位经济学家的一项新研究却得出了一个完全不同的理论。
She hoped to finish her overseas study by the end of the year.
她希望能在年底完成在国外学习的任务。
This was discovered in a valuable study by Dr. John Zimmerman.
这是在发现约翰·齐默尔曼博士宝贵的研究。
Father likes to go into his study by himself to think things over.
父亲喜欢独自在书房里思考问题。
Asks a new study by the International Centre for Research on Women.
国际妇女研究中心的一项新研究中提出了这样的疑问。
"Asks a new study by the International Centre for Research on Women."
国际妇女研究中心的一项新研究中提出了这样的疑问。
My classes were Government, Computers, Spanish, and Study by ourselves.
我的课有管理、计算机、西班牙语和自习。
At this time, we should keep quiet and study by ourselves or have a rest.
在这段时间里，我们应该保持安静，学习自己或者休息。
Father: How many students in your classroom when you study by yourselves?
父亲：自习课上你们班有多少人？
A study by the Brookings Institution in June came up with very similar results.
布鲁金斯学会6月的研究也得出了极为相似的结论。
Mom: You have to prove to us that you are big enough to study by yourself.
妈妈：你必须向我们证明你已经大到可以自己念书了。
Mom: You have to prove to us that you are big enough to study by yourself.
妈妈：你必须向我们证明你已经大到可以自己念书了。
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