He unbuttoned his shirt.

他解开衬衣扣子。

Staff respond well to her unbuttoned style of management.

职工对她洒脱的管理风格反应很好。

He unbuttoned the old man at once.

他立刻解开老人的衣服。

I unbuttoned my shirt cuffs.

我解开了我的袖口。

She unbuttoned her coat.

她解开了外衣的扣子。