But the work is hard. And getting all the oil from the seeds can be difficult.

VOA: special.2009.09.29

or work very hard there all the time.

或一直在那儿努力工作。

关于唐人街 - SpeakingMax英语口语达人

And they are extremely proud of what they're doing. But all of us volunteers,workforce, everybody involved has to keep their eye on the ball, work hard right to the end.

VOA: standard.2010.02.21