A catfish 指在社交媒体或交友应用上冒充他人的人，可能使用别人的照片、虚构的姓名和经历。这个词非正式，带有贬义；字面上 catfish 是鲶鱼。它也能作动词，常见形式是 get catfished：I got catfished 表示被假身份或假资料骗了。
能把 catfish 用进一条消息吗？
写一条简短消息，查看用法问题与更自然的表达建议。
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be a catfish; get catfished (by + person); catfish + person
- Her online boyfriend refused to video call for months, turns out he was a catfish.
- I think I'm being catfished, all his photos are from some model's Instagram.
- Do a reverse image search before you meet anyone, just to check they're not a catfish.
修改原因
修改前I think I was catfishing by someone on a dating app.
修改后I think I was catfished by someone on a dating app.
I was catfishing 表示你正在冒充别人，也就是实施行为的一方。要说有人骗了你，需要被动形式，类似 I was tricked，因此应写 was catfished by someone。
Catfish 指人，虚假账号本身则叫 fake account 或 fake profile：The profile was fake, and the man behind it was a catfish。Catfish 不一定为钱，也可能想获得关注或恋爱关系；骗取钱财的人可称 scammer。IELTS Speaking 中 someone with a fake profile 更中性，作文中可说 people who use fake online identities。
动手练习
Mark said he was a 25-year-old pilot, but on the video call he turned out to be someone else entirely. He was a ___.
查看答案
catfish — Mark 自称是 25 岁的飞行员，视频通话却显示完全是另一个人，因此选 catfish。Troll 的重点是挑衅、扰乱讨论，不是这里通过虚假身份与人建立关系。
给朋友写一条提醒，谈交友应用上一个可疑账号。使用 catfish，并说明具体什么地方让你怀疑。
Be careful with that guy from the app, he might be a catfish, his photos look like stock images.
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