1. 該某人行動了 2. 曝光/被揭露/為人所知

I purchased some face masks and hand sanitizer at the store.
我在店裡買了些口罩和乾洗手。

I made a purchase of some face masks and hand sanitizer at the store.
我在店裡買了些口罩和乾洗手。

I bought some face masks and hand sanitizer at the store.
我在店裡買了些口罩和乾洗手。

You need proof of purchase to claim a refund.
你需要購買證明才能要求退款。

Mark’s design is rejected because there is a flaw. 
馬克的設計作品因為有缺陷而被否決了。

 Mark’s design is rejected because it is flawed. 
馬克的設計作品因為有缺陷而被否決了。

Customers may demand a full refund if they find the products less effective than promised. 
假如顧客覺得產品不符效果保證，他們可以要求全額退款。

When Arthur told the clerk that he was not 
satisfied with the product, she offered to 
refund his money.
當亞瑟告訴店員他對這產品不滿意時，她主動提出要退還他的錢。

I love to exchange stamps with my friends.
我喜歡和朋友交換郵票。

Peter exchanged his toy car for a toy gun.
彼得用玩具車換了一把玩具槍。

I gave Allen a pen in exchange for his watch.
我用一支筆和艾倫換一只手錶。