Having begun in one line, resolve to fight it out on that line, to lead in it, adopt every improvement, have the best machinery, and know the most about it.

一旦在某一行开始，就要坚决在此行奋斗下去，做这一行的领导者，改善它，掌握它。

youdao

Having begun in one line, resolve to fight it out on that line, to lead in it, adopt every improvement, have the best machinery, and know the most about it.

一旦开始从事某种职业，就要下定决心在那一领域闯出一片天地来； 做这一行的领导人物，采纳每一点改进之心，采用最优良的设备，对专业知识熟稔于心。

youdao

Having begun in one line, resolve to fight it out on that line, to lead in it, adopt every improvement, have the best machinery, and know the most about it.

一旦开始干那一行，就要决心干出个名堂，要出类拔萃，要点点滴滴地改进，要采用最好的机器，要尽力通晓这一行。

youdao