been
verb uk/biːn/ /bɪn/ us/biːn/ /bɪn/
（be 的过去分词）
past participle of be
去…参观过;到过…旅游
used to mean "visited" or "travelled",
I've never been to Kenya, but I hope to visit it next year. 我从未去过肯尼亚，我希望明年去看看。
"Have you ever been there before?" - "Yes, I've been twice." "你以前去过那里吗？" - "是的，我去过两次。"
（作为 go 的过去分词，表示动作完成）
used as the past participle of "go" when the action referred to is finished
She's been to the hairdresser's (= and now she has returned). 她去过理发店了。
Do you need to go to the bathroom, or have you already been? 你需要去洗手间吗？还是说你刚去过了？
UK来过;到过
used to mean "arrived"
The postman hasn't been yet. 邮递员还没来。
The doctor's just been (= has arrived and left). 医生刚才来过。