吃力的英文：
strenuous

参考例句：

A laborious journey
吃力的旅行

Plough through the verbiage of an official report,ie read it with difficulty
吃力地阅读晦涩的官方报告.

The distance seemed interminable, and the walk was most laborious.
距离好象无穷无尽似的，走起来真够吃力。

A sweaty joB.
吃力的工作

The work is arduous and the hours are long.
工作吃力,时间又长.

A long pull up the hill
长时间吃力地爬山

It is such a sap.
这事真吃力。

Move slowly and with effort
缓慢而吃力地行进

To walk in a laborious,heavy - footed way;plod.
跋涉沉重吃力地行走

Class work often drags towards the end of term.
学期将结束时，功课进行吃力。

strenuous是什么意思：
adj. 费力的；艰苦的；奋发的；强烈的；紧张的

exercising in preparation for strenuous activity.
为紧张活动而做的准备活动。

Real life was gloomy and strenuous.
真实的生活又沉闷又紧张。

Strenuous labour wore out their youth.
繁重的劳动使她们失去了青春。

The way was long and hard and the emperor was not used to such strenuous exercise.
道路是既长且难行，而且皇帝也不习惯那么费力的运动。

He made strenuous efforts to improve his reading.
他奋发努力提高阅读能力。