求翻译：要提高教师的专业素质：教师必须具备宽厚的专业知识和很强的专业教学能力，这种知识和能力既要全面，又要具备结构上的合理性。是什么意思？

To improve the professional quality of teachers: Teachers must have a generous professional expertise and a strong teaching ability, knowledge and ability necessary to this comprehensive, but also with the structure is reasonable.

It is necessary to enhance the professionalism of teachers, for teachers must be equipped with generous quality of expertise and a strong professional teaching ability, and this knowledge and ability, and should be comprehensive enough to be equipped with structural rationality.

Must improve teacher's specialized quality: The teacher must have the generous specialized knowledge and very strong specialized teaching ability, this kind of knowledge and ability both must be comprehensive, and must have in the structure rationality.

To enhance the professional qualities of teachers: teachers must have generous expertise and strong teaching skills, such knowledge and ability necessary to comprehensive, but also with structural rationality.

Improve the teacher's professional quality: The teacher must possess generous professional knowledge and very strong professional teaching ability, such knowledge and ability should be overall, as well as possess the structural rationality.