improve oneself quality hard是什么意思?

improve oneself qual qual improve oneself quality hard是什么意思 improve oneself quality hard是什么意思? improve oneself in english有哪几种意思? 请问 improve oneself improve oneself 是自我完善的意思吗?是个好词吗? Qual是什么意思 qual lot qual lab中文意思 四维单上的qual improve 求大神看看这句话有没有语法错误?It is a good way to improve the quality of education is improving the quality of the teachers.第二个improve 为啥用ing形式呢?还有第二个quality既然后面跟的是teachers 为什么不用qual QUAL FARFALLETTA AMANTF 这是意大利文, concern oneself bury oneself pull oneself lose oneself