grind本身就是一个英文单词,意思是:v.磨碎;碾碎;把…磨成粉;磨(粉);使锋利;磨快;磨光。n.令人疲劳(或厌倦)的工作;苦差事;刺耳的摩擦声。
例句:1.This rock can be ground up and used for road building.
这石头能磨碎用来筑路。
2.Grinding is the most accurate of all the Basic machining processes.
磨光是许多基本机械处理过程中最精确的一项。
3.Having to type up my handwritten work was a real grind.
不得不将我的手稿打字打出来真是件苦差事。