have one's eyes on 想要
【讲解】
have one’s eye on本义是“把目光放在……逐渐转喻为“注视，想要”。
【对话】
A:Paul, I'm going to work.
A:保罗，爸爸要上班了。
B:Dad, don't forget to buy me the toy gun.
B:爸爸。别忘了给我买那支玩具枪。
A:No, I won't. I know you've been having your eyes on it for long.
A:好的，我知道你想要这支玩具枪已经很久了。
B: Thank you, Daddy.
B：谢谢你，爸爸。
