Definition: Stop relaxing, focus on important task
这句话的意思是不再放松，开始做重要的事情，完成重要的任务。
例句：
Hey, let's get down to work here!
嘿，咱们该认真开始工作了！
Sorry, I've got to get off the phone and get down to work.
对不起，我必须放下电话开始工作了。
get worked up over something
Definition: become angry or annoyed about something
含义是对什么事情感到生气、恼怒
例句：
He got all worked up over the last exam.
他对上次考试非常生气。
Don't get worked up over the garden. I'll take care of it tomorrow.
别因为花园的事情生气了，我明天会搞定的。
make short work of something
Definition: do something quickly
含义是“很快完成”
例句：
I made short work of the assignment and moved on to the next job.
我很快的就完成了任务开始下一项工作了。
Give it to John. He'll make short work of it.
交给约翰吧，他会很快做完的。