move more and more slowly and then stop
慢慢地停下来
work or study hard
认真刻苦地干（或学）
wear someone down with continuous harsh or oppressive treatment
把（某人）折磨垮
mundane everyday things which just grind people down.
真正把人慢慢拖垮的日常琐事。
continue for a long time in a wearying or tedious way
缓慢而单调地继续
the rail talks grind on.
火车旅途中的谈话慢吞吞地继续着。
produce something dull or tedious slowly and laboriously
缓慢而费力地完成（枯燥的工作）
I must grind out some more fiction.
我还得艰难地慢慢写出更多小说来。