Nws yog siv rau hauv kev sib dhos ntawm ntau yam hlau phaj, kav dej thiab lwm yam kev lag luam tsim khoom. Tam sim no, nws yog siv dav hauv kev sib dhos ntawm cov khoom siv hluav taws xob thiab cov khoom lag luam teeb pom kev zoo xws li tsheb, dav hlau, tsheb ciav hlau, tub yees, lub tshuab nqa, hloov pauv, twj paj nruag, rooj tog thiab kho kom zoo nkauj.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-03-2021