[mass noun]the ability to move or be moved freely and easily 移动能力;灵活性;流动性 this exercise helps retain mobility in the damaged joints. 这项运动有助于受损关节保持活动能力。 ■the ability to move between different levels in society or employment (在社会地位或职业间)流动 industrialization would open up increasing chances of social mobility. 工业化给社会流动提供越来越多的机会。