grass-roots work的用法和樣例：
例句
- Only by carrying out the grass-roots and day-to-day work can we hopefully implement all of our slogans and principles.
至於提這樣口號，那樣口號，這樣方針，那樣方針，只有有了基層工作，有了經常工作，才有希望落實。 - That is indeed much of what goes on, but in the following chapter you'll learn how to do the detailed low-level work by making decisions within a method.
這種說法大體正確，但通過以後的學習，大家還會知道如何在一個方法里作出決策，做一些更細緻的基層工作。
