He picked up a hitch-hiker.

他中途让一个搭便车的人上了车。

The driver stopped to pick up a hitch-hiker.

司机停下来带上一个搭便车的人。

They are exploited by intermediaries, hitch hiker sand other parasites.

他们利用中间人顺山砂等寄生虫.

They are exploited by intermediaries , hitch hiker sand other parasites .

他们利用中间人顺山砂等寄生虫。