辛苦的英文：
hard
exhausting
with much toil

参考例句：

Have a hard time;have a rough time
过得辛苦

They are tasked by heavy manual work.
重体力活使他们很辛苦。

Others toiled and you have come in for the harvest of their toil.
别人辛苦劳作，你们却坐享其成。

To labor continuously;work strenuously.
苦干不断地劳动;辛苦地工作

He hid his hard-earned two thousand yuan cash inside a double wall in his apartment
他把辛苦得来的二千元现款藏在住处的夹层墙里。

To search laboriously by or as if by digging;rummage.
搜寻辛苦地挖掘或如挖掘般地寻找;搜寻

All the blessings we enjoy are the fruits of labor, toil, and self-denial, and study. —— W.G.Summer
我们得到的一切快乐都是劳动、辛苦、自我克制和学习的成果。——萨默

Hard-earned(or-won)money
辛苦钱

Marking the exam papers was quite a slog.
评阅试卷是很辛苦的工作.

I've got four kids at home and no wife.
又当爹,又当妈,够辛苦

hard是什么意思：
adj. 硬的，坚固的；困难的；有力的；冷酷无情的
adv. 努力地；困难地；严重地，猛烈地

It is hard to conclude.
这很难断定。

It is blowing hard.
风刮得很大。

It was sleeting hard.
雨雪霏霏。

exhausting是什么意思：
adj. 使耗尽的，使筋疲力尽的
v. exhaust的ing形式

It is not, of course, exhaustive
当然这是不够详尽的。

The exhaust gas exits through the other exhaust manifold
废气经另外一个排气歧管排出。

The purpose is not to give an exhaustive treatment.
其目的并不是给出全面彻底的处理。

much是什么意思：
adv. 非常；差不多；很多地；很大程度上
adj. 许多的
pron. 很多
n. 许多，大量

Much effort, much prosperity.
愈努力就愈成功。

Much of this deserved.
其中许多是值得庆幸的。

He that talks much lies much
多嘴的人说谎也多