望你今后作文，认真揣摩老师所讲的技巧并记住范文，勤于实践会不断进步。
Hope you will seriously consider writing, teacher's skill and remember the model essay, diligent practice will continue to progress.
一个人如果想少犯错误少受挫折就必须勤于学习、勇于实践。
A man who wishes to make fewer mistakes and suffer fewer setbacks must be diligent in learning and courageous in practice.
要想少犯错误，就必须勤于学习辨证唯物主义，勇于参加实践。（表假设、条件）
A man who wishes to make fewer mistakes must be diligent in learning dialectical materialism and courageous in taking part in actual practice.
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