If you describe a bad situation as grinding, you mean it never gets better, changes, or ends.
例句
Their grandfather had left his village in order to escape the grinding poverty.為了擺脫貧困的煎熬，他們的祖父離開了村子。...the grinding difficulty of getting to the stadium.想要進入體育場困難重重
PHRASE
突然停頓下來
If you say that something comes to a grinding halt, you are emphasizing that it stops very suddenly, especially before it was meant to.
例句
A car will come to a grinding halt if you put water in the petrol tank.如果把水灌進油箱，汽車會猛然間停下來。