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。
When you have finished your experiment, please tidy the lab and put everything back in the cupboards.
做完实验后,请你们把实验室整理好,并把所有的东西放回器皿柜。