一不做,二不休 meaning in English

stick to a thing once begunA thing once begun will not be put off until done.be determined to go the whole hogcarry a thing through,whatever the consequencesgo a great lengthIn for a penny,in for a pound.Once it is started,go through with it.One may as well be hanged for a sheep as for a lamb.Over shoes,over boots.We must go through with a thing,once it started.