wèi / le / ràng / hái / zi / huó / xià / qù / tā / men / bù / dé / bù / táo / huāng / dào / wài / dì

为了让孩子活下去，他们不得不逃荒到外地。

To keep their children alive, they had no choice but to flee to another region during the famine.