He's fallen far behind in his work.

他的工作大大落后了。

《牛津词典》

I've fallen behind in work.

我工作落后了。

youdao

He was terribly behind in his work.

他积压了大量工作。

《牛津词典》

Arkansas,Florida and Texas schools, on the other hand, are lagging behind in giving their students a solid science foundation.

VOA: standard.2009.11.25

Did you have a place where you could say: Or did you have to leave that behind in favor of life of the mind?

有没有这样一个地方，能让你觉得：,还是你必须把信仰抛在脑后，只能在心中默想？

普林斯顿公开课 - 人性课程节选

is sort of falling behind in terms of how many university graduates

有点落后了，在有多少大学毕业生

对于奖学金制度 - SpeakingMax英语口语达人

Just barely behind in import is one of the world's great music events: Jazz Fest.

BBC: Celebrate New Orleans, from Mardi Gras to Jazz Fest

All too often, struggling small businesses fall behind in paying their federal payroll taxes.

FORBES: Why Spouses Make Lousy Business Partners

Merck and Bristol-Myers are close behind in terms of total giving as a percentage of profits.

FORBES: Magazine Article