industrial betterment v的用法和樣例：
例句
- The betterment of the word can be accomplished through pure and goodly deeds, through commendable and seemly conduct.
通過(guò)純潔和良好的行為以及值得贊揚和適當的品行才能達到世界的改進(jìn)。 - This paper reports an improvement on the experiment of refining industrial natrium sulfide recorded in some chemistry textboobs.
本文對一些化學(xué)實(shí)驗教科書(shū)所載提純工業(yè)硫化鈉的實(shí)驗方法進(jìn)行了改進(jìn)。
