求翻译：高中数学的基本内容他已经完成，在中国进入高三后一本都是复习。选修课程有“不等式选讲”和“极坐标与参数方程”需要学习。是什么意思？

He has completed high school mathematics, one in China to enter the third year are review. Elective courses inequality Selected Readings and polar coordinates and parametric equations need to learn.

The basic high school math content he has already been completed in China in the high 3 is after all a review. Elective courses with a "不等式 option stresses" and "polar equations with parameters" need to learn.

The high school mathematics basic content he already completed, entered high three latter in China all was reviews.Takes as an elective the curriculum to have “the inequality to elect to speak” and “the polar coordinate and the parametric equation” needs to study.

The basic content of high school mathematics he has finished, after China's entry into the third year of this is review. Elective course "selected topics in inequalities" and "polar and parametric equations" need to learn.

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