Kev Nrig Hom yog qhov tseem ceeb ntawm Kev Ua Lag Luam Zoo

Thaum kuv thawj zaug tau mus xyuas Chicago nrog kuv niam kuv txiv xyoo dhau los, peb tau ua qhov yuav tsum tau mus xyuas Sears Tower (tam sim no hu ua Willis Tower). Taug kev cov blocks mus rau hauv lub tsev thiab saib mus - koj pib xav txog dab tsi xav tsis thoob ntawm engineering yog. Nws tau 4.56 lab tag nrho cov xwm txheej siab, 110 cov dab neeg siab, siv 3 xyoo tsim thiab siv cov pob zeb ua kom txaus kom ua tau yim kab kev, tsib-mais ntev kev loj. Tom qab ntawd koj tau txais hauv