同学你好，该知识点来自沪江网校《韩语零基础至中级全能提升VIP【现金奖励班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~

must also be 一定也是……，加上also

environmental issue 用形容词形式，is always，加上谓语

just like people say表达不够地道正式，去掉

sort garbage into different groups 垃圾分类

句首的but可以改成However

less改成few，修饰可数名词

下一句语法是错误的，可以改成
Many people still drive to work to save time or do not classify garbage.
drive to work 开车去上班

最后一段表达不够地道，改成：It is only by planning can we actually do something, but it is also meaningless to plan without doing anything.

祝同学学习进步~