get down to work

认真开始工作

get ahead (of sb), get ahead of, get along, get along with, get along/on with, get around, get around to, get around/round, get around/round to, get at, get at sb, get away, get away with, get back, get back at, get behind (with sth), get by, get by heart, get down, get down to, get hold of, get in, get in with, get into, get into an argument with sb., get into debt, get into sb, get into shape, get into the act, get into trouble, get married, get off, get off work, get on, get on to, get on with, get one's hands on, get one's teeth into, get oneself into, get out,