Assuming (that) he's still alive, how old would he be now?
假定他还活着,现在有多大年纪了?
《牛津词典》
2
One way in which people can justify their worldviews is by assumingthat, as long as their conversations run smoothly, their interaction partners probably agree with them.
人们证明他们的世界观的一种方式是,假设只要他们的对话顺利进行,他们的互动伙伴就可能同意他们的观点。
3
Assumingthat your teacher is neither biased nor corrupt and that her system conforms to school rules, you can't fault her ethics.