You'd have a better chance of catching the train if you took a bus to the station instead of walking.
如果你不是步行而是乘公共汽車的話,那你就比較有可能趕上火車。
Then it turned in a semicircle, ran straight again, and turned in another semicircle to the opposite side.
然后轉一個半圈,再沿直線飛,再朝反方向轉個半圈。