词汇	lay speaker
释义	lay speaker 🌏讲话者
随便看	population and economy development population and education populat ion population-absorbing place Population abundance population accounting population accumulation population accumulation area Population adaptability population administration population adverse selection Population age population age distribution population ageing Population Ageing level Population age structure Population agglomeration population aggravation population aging population-aging population aging advent population aging coefficient Population aging industry populational populational cause effect relationship