To answer the first part of your question, I'd like to say that our studies were very extensive.
你问题的第一部分,我要说的就是我们的研究非常广泛。
With practice, no doubt, I could in time learn to write by holding the pen still while the paper moved.
毫无疑问,经过练习,我最终能够学会笔不动而纸动来写字。