Tam sim no qhov ntawd yog qhov kuv hu ua tus kwv tij-viv ncaus kev sib raug zoo - lawv yog pab pawg! Thiab lawv tau ua npau taws kub hnyiab, vim tus muam thaum kawg nug nrov nrov yog nws tuaj hauv nws. Thiab yog li - tag nrho cov kev txav yog honed thiab cim - nws yog qhov pom tseeb tias lawv tsis yog thawj zaug.
Thiab cov hais mav pib maj mam thaum xub thawj, tab sis tom qab ntawd ib yam li perforators sib cais. Tam sim no cov plaub hau daj lub qhov yuav tsis nruj heev - cov txiv neej ntseeg siab tsim lawv. Cov neeg tshaib plab tshaib plab heev, cov phev ntau lawv sau, nchuav rau hauv qhov quav nrog cov phev.