英语语法分析

Don't set your goals by what others deen important.

请勿把别人认为重要的东西作为自己的目标。

There has deen a great change in forest harvesting technology in theworld during last 30 years.

近30年来，国外森林采伐技术发生了巨大的变化，已经开始实现全盘机械化。

The calculation results show that some improvements of the predicting precision have deen achieved.

计算结果表明，预测精度均有不同程度的提高。