英语语法分析

It seems commonly believed that companies are not motivated to prolong their products' lifespan.

人们似乎普遍认为，公司没有动力去延长产品的寿命。

In government laboratories and elsewhere, scientists are seeking a drug able to prolong life and youthful vigor.

在政府实验室和其他地方，科学家们正在寻找一种能够延长寿命、让人保持年轻活力的药物。

Extreme high-performance sports may lead to optimal cardiovascular performance, but they quite certainly do not prolong life.

极限高强度运动可能会带来最佳的心血管功能，但这些运动肯定无法延长寿命。