例句
The cat rested upon a cushion beside the window.
猫趴在窗边的垫子上休息。
Upon completing their training, new teachers should receive ongoing support from experienced colleagues at school.
新教师完成培训后，应持续获得校内资深同事的支持。
常用搭配
- upon arrival｜一到达
- upon completion｜一完成
- once upon a time｜从前
用法提示
比on正式；upon doing表示“一……就”。