Body movement is rarely symmetrical, but involves overallbalancing of posture or reactions.
身体运动是很少对称，但涉及整体平衡的姿势或反应。
2
Balancing the security needs with the overall usability of the system must be part of an overall risk-management strategy.
总体风险管理战略中必须包含将安全需求与系统的总体可用性进行权衡的内容。
3
Some computers can become overloaded, so if you add more computers and combine load balancing into the solution, each computer takes a fraction of the load, leading to better response times overall.