意思1（英文解釋和中文解釋）sth (with sth) cause sth to continue; keep sth in existence at the same level, standard, etc 保持或維持某事物: maintain friendly relations, contacts, etc (with sb) （與某人）保持友好關系、 接觸等
*(例句) enough food to maintain one's strength 足以維持體力的食物
* maintain law and order 維持法治
* maintain prices, ie prevent them falling 維持住物價（防止跌落）
* maintain one's rights 保留自己的權利
* Maintain your speed at 60 mph. 妳要保持每小時60英裏的速度.
* The improvement in his health is being maintained. 他的健康狀況仍在繼續好轉.
意思2
support (sb) financially 在財務上支持（某人）; 贍養; 扶養: earn enough to maintain a family in comfort 掙的錢足以維持壹家人過舒適的生活
* This school is maintained by a charity. 該校由壹慈善機構資助.
* She maintains two sons at university. 她供兩個兒子上大學.
意思3
keep (sth) in good condition or working order 保養, 維修（某物）: maintain the roads, a house, a car, etc 保養道路、 房子、 汽車等
* Engineers maintain the turbines. 機修工維修渦輪機.
* a well-maintained house 保養良好的房子.
意思4
assert (sth) as true 斷言（某事）屬實; 堅持: maintain one's innocence 堅持自己無辜
* maintain that one is innocent of a charge 對某項指控堅稱無罪.