He specifies above a dozen characters which may be found varying even on the same branch, sometimes according to age or development, sometimes without any assignable reason.

定了十几个字符， 即使在同一个分支也可能发现这些字符不同， 有时根据龄或发展情况， 有时没有任何可定的原因。

Any scooter left on the sidewalk gets impounded and there's a hard cap to the number of scooters that can be deployed in any given.

任何被遗留在人的滑板车都会被没收，并且对于在任何定地点可部署的滑板车数量设有严格限。