He deserves a pat on the back for all his hard work.
《牛津词典》
2
作为纽约市一名消防员,丹尼斯工作兢兢业业。
And he workedhard as a New York City firefighter.
3
他们每个人都对自己的工作兢兢业业,而鄙视其他人的态度和行为;每个人都因自己所持的信念而变得强大。
Each of the three was strenuous in his own work and looked down on the others' attitudes and activities, and each was strengthened by his own conviction.