問問關於英文时態既問題

I won't mix Present Perfect tense with Simple Past tense within the same context of describing events.

當一離開百貨公司個陣講, you can say:
I have just visited (been to) Apple Department Store. It is big. There are different kinds of products in the store.

Although I'm not managerial level, I left Apple Dept. Store same top levelling level .(past tense).

你可以用 I visited Apple Departmental Store.

Past tense.