求翻译：第四可以调节疲劳的学习环境，改善紧张的情绪是什么意思？

The fourth learning environment can be adjusted fatigue, improve tension

The first 4 can be tuned to improve the learning environment fatigue of emotional stress

In two years semester, I hoped may in the books view as far as possible look books, supplemented my study knew, thus better sharpens my ability.And participates in each activity, sharpens my various aspects ability.Because English is not always very good, therefore has not tested the English four le

IV can regulate fatigue study environment, improving the tense mood

IV can regulate fatigue study environment, improving the tense mood