There is nothing so admirable as a man whose sacrifices his life and happiness for others. 

An idle youth, a needy age.

The doctor will get more practice out of me than out of ten ordinary patients.

Man was, is and always will be trying to improve his living conditions.

Cars turn into dead weapons when they are driven carelessly.

The Crimea also released CDs for sale in shops because （）.

Nobody can work well if he is distracting.

In this passage, the expression "walk in the shoes of" is similar in meaning to （）.

Have run out of fuel, the plane crashed to the ground.