at heart   (TTS發音)

1. in reality；basically實際上；基本上

    He seems polite， but he's dishonest at heart. 他似乎很有禮貌，但實際上是個不誠實的人。

    His manners are cold， but he is at heart a kind man. 他的言談舉止有些冷淡，但實際上他心地善良。

2. deep down在內心

    She has your interests at heart. 她常把你的利益放在心上。

    She did not at heart want to do it. 她心裡並不想做那件事。

    I am sick at heart. 我心中苦悶。