Leche, 有为娘 不如有老娘在，：D

吾儿毋怕，有为娘，看谁敢动你？！

My sweet child, I'd give my life for yours. 我的心肝宝贝，我愿意替你去死。（可能是丧子的家长的悲恸之词） My darling child Mummy would give her life for yours, lest some harm should come to you 我的宝贝孩子，妈妈吧心都捧给你（妈妈这么的心疼你），怎么让你受到伤害呢！ 希望能的到这两句话的出处。

I don't believe in that...

My sweet child 我亲爱的孩子 (taking "sweet child" as to mean "lovely child") Note: No direct translation for "sweet" in this context. Use any other approperiate adjective. however, 我甜蜜的孩子 would sound unnatural to me in this case. I'd give my life for yours 我愿与你替换生命 Note: because one cannot literally "give life", there is no direct translation. hence i opt to use 替换 which is "in place of" + "exchange" I'd lay down my life for you 我愿为你放下生命 Note: in this case, direct metaphoric translation is possible. lest some harm should come to you 不让你受到(任何)伤害 I'd sacrifice my life for you 我愿为你牺牲生命