if not item.get("title"):
Charlotte Self, archive manager for the project said she and her team were asking landowners to donate them where possible, so people around the route could enjoy them.
，这一点在WPS官方版本下载中也有详细论述
（五）向场内投掷杂物，不听制止的；
This step rapidly finds the optimal sequence of border points and shortcuts to get from your start cluster's periphery to your target cluster's periphery. It's incredibly fast because it's ignoring all the tiny roads within intermediate clusters.