英语汗水

sweat本身不可数。几滴汗水可数，a drop of sweat, three drops of sweat。

汗流浃背perspire all oversweating profuselysweat like a pigsweat runs down the backbe drenched with sweatthe back is covered with sweatwith sweat streaming down one's backflowing sweat soaks through the back one's whole body was dripping with sweat

sweatn.汗, 出汗水珠, 湿气是不可数的，但可以这样说，两滴汗：two drops of sweat。例句：Exercise makes one sweat. 体育锻炼能让人出汗。He was dripping sweat. 他在淌汗。

不可数。但是注意，可以这样说，两滴汗：two drops of sweat。

辛苦是hard；toilsome；work hard；go to great trouble；hardship ；汗水是汗水sweat；perspiration ；

perspiration

是不可数sweat/perspiration

辛苦：painstaking汗水：sweat