两对(duì )夫妇发现(xiàn )他们的(✒)孩(🐽)子在出生(shēng )时就被调(diào )包，由此面临(lín )道德困境：是(🎺)继续养育没(🥈)有血缘(🌰)的爱(ài )子，还(🐮)是(🥩)找(zhǎo )回他们的亲生孩(🎲)子？