"Nws Jian" tuaj yeem ua kom muaj zog.
Qhov no eyewear ceg nrog cov kab zoo nkauj thiab radians zoo li lub zoo meej parabola.
Ob txhais ceg ntawm cov tsom iav zoo ib yam li cov archery khiav uas ntog lawm vim lub ntiajteb txawj nqus vim yog high-ceev shooting.
Txawm hais tias muaj hnub nyoog thiab poj niam txiv neej, txhua qhov kev txhaj tshuaj xub xub yog qhov nyuaj kom kov yeej tus kheej.
(eg.77/771...)
