make the grade什么意思？

make the grade的音标：make the grade的英式发音音标为：[meik ðə ɡreid]make the grade的美式发音音标为：[mek ði ɡred]...

She had a strong desire to be a dancer but failed to make the grade.她非常渴望成为舞蹈演员，但却因为达不到标准而未能圆梦。They may pull all their lives and never make the grade, not even in this trade.他们也许拉一辈子洋车,而一辈子连拉车也没出过风头.It takes hard work to...