1) How long has he been in existence?
人类存在多久了？
2) Being
[英]['bi:ɪŋ] [美]['biɪŋ]
人类存在
1.
Dialogue·Being·Education——An Introduction of the Study of Dialogue Education;
对话·人类存在·教育——对话教育研究之引论
3) And you've been In here how long?
你在这边多久了？
4) How long has that man been at the helm?
那人掌权多久了?
5) How long have you had it?
起了多久了?
补充资料：人类
1.泛指人。 2.人的总称，指人的全体。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条