Definition
- C1
To watch carefully for the appearance of someone or something.
留意觀察
At the airport, please keep your eye out for any suspicious packages.
在機場，請密切留意任何可疑包裹。
We're looking for a house with a big red door, please keep an eye out for it.
我們在找一間有大紅門的房子，請幫我們留意一下。
If you see my brother in the crowd, please let me know; he's wearing a blue jacket.
如果你在人群中看到我弟弟，請告訴我；他穿著一件藍色夾克。