hái zi / yí ge rén / zài / wài dì / shēng huó / mǔ qīn / zǒng / wèi / tā de / ān quán / qiān xīn

孩子一个人在外地生活，母亲总为他的安全牵心。

Because her child lives alone away from home, the mother is always concerned about his safety.