一个真正的好学生应该具有美德，完美的健康状况，熟练的知识，还有各种各样做事的能力。
A true good student is one who possesses good morality, sound health, perfect knowledge and various abilities to do things well.
不过，种间杂交过程可能会很慢长，需要大量的科学专业知识和熟练劳动力。
However, interspecific hybridization programmes can be slow and require a great deal of scientific expertise and skilled Labour.
然而各个州仍然还在遵照联邦的要求，极度关注那些未熟练掌握所学知识的学生。
Yet states appear to be following the federal mandates, effectively focusing on those students below the proficiency levels.
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