Shantui, los ntawm kev mus ntsib thiab ua raws li cov neeg siv khoom lag luam tseem ceeb hauv nws cheeb tsam hauv lub sijhawm dhau los, thaum kawg tau txiav txim siab nrog cov neeg siv khoom sab hnub tuaj rau sab hnub tuaj rau ib lub hopper nqa cov khoom cog cog, ua tiav kev muag khoom thawj zaug ntawm kev sib xyaw ua ke. cog hauv cheeb tsam no.