One is to keep flailing to a minimum, and the other is to reduce the chance of a secondary impact.

一是最大程度减少摆动，二是减少再次撞击的可能性。

Secondary impact is a head injury on top of a head injury, like what might happen if your head hits the seat on front of you multiple times during a crash.

再次撞击会使得原本受伤的头部再次受伤，撞机时头部多次撞击前排座椅就是如此。

Today, amid the COVID-19 pandemic, the U.S. Government has so far provided $11 million to help Cambodia's medical and public health response to the disease, and to mitigate the secondary impacts resulting from the pandemic.

今天，由于新冠肺炎疫情，美国政府迄今已提供1100万美元，帮助柬埔寨医疗和公共卫生部门应对该疾病，并减轻该流行病造成的二次影响。