Cov txiaj ntsig:
● Pab txhim kho kev nyab xeeb:
Txo qhov kev ncua deb thiab txhim kho cov kev tswj lub tsheb tag nrho.
Resticity txuag:
Minimizes hnav thiab rhuav cov nres nres, txuas ntxiv lawv lifespan.
Them Nqi Them Nqi:
Cov nqi kho tus nqi qis dua thiab nce siab dua vim yog kev ua tau zoo.
