我认真学习了英语
I studied English carefully
以上为机器翻译结果，长、整句建议使用 人工翻译 。
在这期间我认真学习了课本上的知识，并且修读专业各学位，英语A级，计算机中级，化工总控工。
During this time I seriously studied the textbook knowledge, and attend professional various degrees, English A-level, mid-level computers, the total control of chemical workers.
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