After three years of hotel cost accounting, I can go to other hotels to make general ledger.

Yes, you can. Because cost accounting and general ledger accounting are not contradictory. So cost accounting can do general ledger, and general ledger accounting can also do cost. Cost accounting is the post responsible for cost collection and accounting, including correctly accounting costs, optimizing target costs and strengthening cost control. General ledger accounting is responsible for accounting treatment and preparation of accounting statements, including daily accounting and auditing accounting vouchers.