KTG10020 Koob txhaj tshuaj tas mus li

Kev piav qhia

8. Cov qauv yog precession thiab cov kua dej nqus tau zoo meej.

9. Tus qauv tsim yog tsim nyog, cov qauv yog tshiab, thiab nws yooj yim siv.

10. Qhov kev ntsuas yog qhov tseeb.

11. Nws yooj yim rau kev khiav lag luam thiab tes xis nyob.

12. Cov khoom no muaj cov khoom seem, thiab muab kev pabcuam zoo.

5ml koob txhaj tshuaj txuas ntxiv R hom