A man begins having an extramarital affair to deal with his emotional and companionship needs while caring for his terminally ill wife.名称：胎生，兑换积分：250，000分。在母体内生长到一定程度(dù )以后(hòu )脱离母体，能够极大几率提(tí )供后代(🧐)的生存率。胎生为发(fā )育(yù(🌑) )的后代提供了保护、营(yíng )养以及恒温的(de )发育环境(jìng )，最大(dà(🕔) )程度(🐓)降低外界(😬)环境对胎儿的发育情况。胎生的(de )数量比卵生数量(liàng )要少。