1、艰巨
... surfactant-associated proteins 肺表面活性物质相关蛋白 arduousness 艰巨 ship steel 船用钢 ...
2、艰巨性
...源利用；紧迫性；艰巨性 [gap=900]Key words: the 11th Five-Year Plan; the use efficiency of energy; urgency; arduousness ...
3、艰辛
... 艰难地行走stodge 艰辛arduousness 艰辛地arduously ...
4、奋斗
are的中文释义 ...arduousness是什么意思arduously的中文释义arduous什么意思及同义词 ...