upon
英 /əˈpɔn/
中文释义
prep.在…上；在…旁
Used in formal contexts to indicate something happening after a specific event.
常用搭配
- once upon a time很久以前
- rely upon依赖
- upon arrival抵达时
例句
- Once upon a time, there was a king.很久以前，有一位国王。
- Payment is due upon delivery.货到即须付款。