商务会议上他穿着一件干净的白色纽扣衬衫。

He wore a clean white ___button-up to the business meeting.

她匆忙地扣好衬衫的纽扣去参加会议。

She quickly ___buttoned up her shirt before the meeting.

我们需要在下班前把演示文稿完善好。

We need to ___button up the presentation before leaving work.