整的，請用一句話總結這個段落的要義。"This is certain!" Iron Strong said with a smile, "There are quite a few wealthy individuals here who wish for their grandchildren to grow up quickly. This promotion pill is tailored...並返回。”"They said they've investigated, and there aren't any Dark-haired Beings under the lake. Also, be careful and nothing will happen to you." Iron Yuntian smiled. "Speaking of which, the method of e...