Were it left to me to decide whether we should have a city without bikes or one without cars.
如果让我来决定我们要一个没有自行车的城市,还是要一个没的汽车的城市。
Because of this, we kept looking back, wondering if we were leaving a trail of oil and petrol behind us.
因此,我们不时地掉过头,怀疑车后是否留下了机油和汽油的痕迹。