Muaj ntau ntau hom launching li, ua ntej ntawm tag nrho cov, hom lifting, thiab ces lub flip phaj thiab bouncing hom.Feem ntau hais lus, cov kav dej phwj tuaj no tau siv sijhawm ntev.Yog tias lawv tsis raug ntxuav hauv lub sijhawm, lawv cov khoom siv kho tshuab tsis yooj yim siv vim qhov sib xyaw ua ke ...
Nyeem ntxiv