从头开始
1.from square one
2.From scratch
3.From the very beginning
4.start from scratch
重新开始,从头开始
1.renew
2.C.renew
从头开始,重新开始
1.home start
从头开始,白手起家
1.from scratch
2.start from scratch
（坚持从头开始）
1.keep on beginning