Doctots study for six years after finishing school.如何翻译

Doctots study for six years after finishing school.如何翻译 study for study for exam还是study for exams? study for a test study for a big this time for study just for study~ study for three study for three study for tests We study for the revolution study for the coming English I_____(plan) for my study. SI si for study English还是for studying English 急求英译汉,有关材料方向的,The as-cast ingot corresponding to the composition Al–14wt% Fe–2wt% .Si was used for the present study.The supplied alloy was prepared by melting 4N purity(99.99%) Al with high purity Fe and Si in an Al2O3 cr We study for the people 中.study是不是谓语