top up的看来确实取不出来
2. HOW MUCH CAN YOU WITHDRAW FROM YOUR CPF AT 55? Upon turning age 55, a CPF member can withdraw cash from his CPF OA and SA. The CPF withdrawal rules are: $5,000 OR your OA and SA savings above the Full Retirement Sum (FRS)*, whichever is higher And Any RA Savings (exclude top up monies, government grants, and interest earned) above the Basic Retirement Sum (BRS) that comes with a sufficient property pledge**.