1. The approximate time of their arrival will be five o´clock.
    他们约于五点到达。

2. Upon leaving Paris, trains will whistle along at an approximate speed of 186 miles per hour until they go underground, but will creep along as slow as 50 miles per hour behind local trains the last 68 miles to London.
    火车离开巴黎，呼啸着以大约186英里的时速驶入地下，行至距伦敦68英里处的时候，却只能跟在当地的火车后面，以每小时50英里的速度慢慢爬行。