practice and drill这句话是什么意思?

practice and drill这句话是什么意思? 英语翻译rebounding：go get it drill还有这句this is no get drill May I say that the practice of the only child has both advantages and disadvantages?翻译这句话并且说一下句中的practice的理解 They play the part that is expected from them,and with practice learn to.语法分析They play the part that is expected from them,and with practice learn to play it very well.这句中的with practice 是介词with加practice作主语吗?好像不 practice,exercise,drill,train都作练习的意思时有何差别? 一句话英译汉,请教英语达人,ABC Company designs and manufactures a range of standard and customised synthetic diamond PCD cutters for use in oil and gas drill bits in hard-rock applications.再加上下面这句，请一起翻译，The comp Drill and Tap for 5/16-24 NC Drill and ream for 3/8S F .dowel是什么意思? Then clap and practice是什么意思 And then practice n pairs Listen and practice 请翻译 practice more often and you will become a good player改为同义句—— ——practice more often,——become a good player practice makes perfect and nobody is perfect..then why practice? they need hundreds of hours of study and practice,这句话可以改为they need hundreds of hours to study and practice 这句话里的drill和crisp是什么意思?the handle of the drill in the sample was to crisp-please note the drill needs to be pre-washed before cutting.这里面drill和crisp 求翻译 techniques and materials for teaching ,drill design,and music arranging drill是什么意思? tap drill