Can we lead back to the past now and just learn a little bit more about where did you, where you come from?

是否可以让我们了解一些你的过去，比方说你从哪里来等等？

youdao

Is just a little bit of lead really harmful?

仅仅一点点的含铅量真的有害处吗？

youdao

Is just a little bit of lead really harmful?

仅仅一点点的含铅量真的有害处吗？

youdao