他们得（向别人）乞求救济来养活孩子。
They had to beg alms (of others) in order to feed their children.

街上有数以百计的乞丐。
There are hundreds begging in the streets.

真让我吃惊，他竟堕落到沿街乞讨的地步。
I'm surprised that he descended to begging for his food.

他们穷得不行乞便挨饿。

他以行乞为生。
He lives by begging.

那个流浪汉不得不乞求钱财。
The vagrant had to beg for money.

这个无家可归的男孩靠乞讨和偷窃为生。
The homeless boy begs and thieves for a living.

他认为向他人乞求救济是耻辱。
He thinks it's a shame to beg others for alms.