difficulties [troubles] that one is reluctant to discuss or mention ；

[例句] 她需要找个人诉诉心里的苦衷。 She needed to unburden herself to somebody.

[例句] 我们听到他倾诉他的苦衷. We listened to him pour out his troubles.

be fond of，crave，mania，self-absorption，fall over oneself for ；

[例句] 本田先生自己年轻时就是位热衷赛车的车手。 Mr Honda was himself a keen racing driver in his younger days.

[例句] 人们对休斯敦的会谈几乎过于热衷。 There's almost a giddiness surrounding the talks in Houston.

from the bottom of one's heart，heartily，inly ；

cordial，devout，heartfelt，wholehearted，feeling ；

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