Unbuttoning my top collar button.

不扣衣领最上面的纽扣。

She is unbuttoning my shirt. “God, you’re so...young.”

她解开我衬衫的扣子，一粒一粒的解开，“我的老天，你，你正年轻。”

I woke up to my boyfriend kissing my neck and unbuttoning my shirt.

我醒来的时分发现他在亲我的脖子，同时解开我的衬衫。

Aside: the king grabbed him and started unbuttoning the youth's jacket.

旁白：国王一把抓住小伙子，去解他的上衣扣子。

He'll play with the buttons on his jacket, buttoning and unbuttoning it.

他会玩弄他外衣上的纽扣，将其扣扣开开。