片语
Prolong Storage Time延长贮藏时间
prolong the time of focus延长注意时间
prolong coagulation time延长凝血时间
prolong freshening time延长保鲜期
prolong action time延长作用时间
prolong working time延长工时
prolong survival time延长生存期
Prolong Their Sleeping Time延长其睡眠时间
But Prolong Life Time但延长生活时间