Definition
To understand what someone is thinking without them expressing it verbally.
無需他人告知便能知曉某人的想法；猜中某人的心思
I was just about to say that, you really read my mind!
我正要說那句話，你真的猜中我的心思了！
When I was contemplating whether to buy that dress, she bought it for me directly. She can totally read my mind.
當我在考慮要不要買那件洋裝時，她直接買給我了。她完全猜中了我的心思。
Before I even said anything, he knew I wanted pizza. He totally read my mind.
我還沒說什麼，他就知道我想吃披薩。他完全猜中了我的心思。