??1.?they could still invalidate fourth amendment protections when facing severe, urgent circumstances, and they could take reasonable measures to ensure that phone data are not er
ased or altered while a warrant is pending.
【句子分解】这是一个并列句,第一个句子的主语是they,谓语是invalidate,宾语是fourth amendment protections,when引导时间状语;第二个分句的主语是they,谓语是take,宾语是reasonable measures,后面的to ensure是目的状语,that后接宾语从句that phone data are not erased or altered,最后while引导的是时间状语。
【参考翻译】当面临严峻、紧急的情形时,他们仍能令《第四修正案》中的保护条例无效,并能在等待搜查令的同时采取合理的措施以确保手机数据不被抹掉或改变。
????