Kev xyuas xim- Cov qhov rooj hluav taws hluav taws tsuas yog txuag tau tuag thiab haus luam yeeb los ntawm kis mus rau qhov chaw tib neeg tuaj yeem tawm, zoo li cov hluav taws kub tawm thiab txoj kev.
Tsev khaws cia – Ib cag ntawm kev tiv thaiv cov neeg hauv lawv, cov nplaim hluav taws yog qhov tseem ceeb hauv kev tiv thaiv cov tsev los ntawm kev sib kis hluav taws thiab haus luam yeeb thoob plaws. Lawv kuj yog qhov tsim nyog hauv kev nres cov hluav taws kub tawm ntawm lwm lub tsev.
