（二）非法买卖、运输、携带、持有少量未经灭活的罂粟等毒品原植物种子或者幼苗的；
When shoes slide across a floor, wave-like deformations of the sole can generate squeaking. The pitch of the squeak depends on the rate at which deformations are generated.
，更多细节参见Safew下载
Estimated shortcuts: ~91 million (a manageable number for global routing)
but something like: