The second system is the voluntary, behavioral system.
第二套系统是自发行为系统。
So far, only 40 countries have established a 100% voluntary blood donation system.
迄今为止，只有40个国家已建立了100%的自愿献血制度。
Owners can register via the National Animal Identification System, but it is strictly voluntary.
饲养者可以凭借着本国动物身份证明系统注册，但那完全是自愿的。
A voluntary report would motivate management to improve its internal control system.
自愿性内部控制报表能刺激管理层改善公司的内部控制系统。
A voluntary report would motivate management to improve its internal control system.
自愿性内部控制报表能刺激管理层改善公司的内部控制系统。
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