v. 保持( maintain的第三人称单数 ); 保养; 坚持; 保卫

v keep in a certain state, position, or activity; e.g., "keep clean"

v keep in safety and protect from harm, decay, loss, or destruction

v supply with necessities and support

v state categorically

v have and exercise

v maintain for use and service

v maintain by writing regular records

v state or assert

v support against an opponent

v stick to correctly or closely