Help yourself.You are ad lib here.
请自便,在这里你不受限制.
Suit yourself,but I had hoeped that you would come and help.
请自便,不过我曾希望过你能来帮忙.
When Bob insisted on going,John left him to himself.
鲍勃一定要走,约翰便听其自便了,
You is free to come and go as you please.
你来去自便.