laboured

动词 labour:

1. work hard
   同义词：labor, labour, toil, fag, travail, grind, drudge, dig, moil
2. strive and make an effort to reach a goal
   同义词：tug, labor, labour, push, drive
3. undergo the efforts of childbirth
   同义词：labor, labour

形容词 laboured:

1. lacking natural ease
   同义词：labored, strained
2. requiring or showing effort
   同义词：heavy, labored

1. He laboured at a task.
   他努力做一件工作。
2. The first steam locomotive, introduced in1825, had a top speed of only thirteen mph, and the great sailing ships of the time laboured a long at less than half that speed.
   1825年推出的第十辆蒸汽机最大速度每小时仅为13英里，而那时的大帆船行驶得更慢，还不到这个速度的一半。
3. The old man laboured up the hillside.
   老人吃力地登山。
4. The ship laboured through the rough seas.
   船在波涛汹涌的海上挣扎前行。