Tus nqi tseem ceeb

tus nqi tseem ceeb

Tus nqi tseem ceeb yog hais txog qhov kev mob uas muaj qee yam khoom siv ntawm lub cev yuav tsum txaus siab thaum cov khoom hloov ntawm ib lub xeev lub cev mus rau lwm qhov, uas yog sib npaug ntawm qhov stagnation point feem ntau hais hauv kev ua lej.