Tsis ntev los no, ntau thiab ntau tus neeg siv hluav taws xob engineering tricycles, tsis tsuas yog nyob rau hauv cov cheeb tsam nyob deb nroog, tab sis kuj nyob rau hauv kev tsim kho tej yaam num nyob rau hauv lub nroog, thiab nws yog inseparable ntawm nws, tshwj xeeb tshaj yog vim nws me me, nws tau nrov heev ntawm cov neeg ua hauj lwm tsim kho.Zoo li nws, koj tuaj yeem yooj yim thauj con ...
Nyeem ntxiv