Cm oi e sih o tuan 34 dc 2,1kg, be ko du thag nhug dc cai be cug cap ko phai nam log kih. Me ck mih nge ngkhac noi be bi suy dih duog tam nay phai 2,5kg moi dug. Ba cu cai diep khuc do ma ca di ca lai lam mih buc het ca mih. Co phai be nha mih thieu can that ko cm.