一下

• He asked a little about my life history .
  他简单地问了一下我的履历。
• With a nod he vanished into the bedroom .
  他点头招呼一下就进了卧室。
• Would you kindly make an exception for us this time ?
  请给通融一下。
• Then suddenly he was struck violently .
  后来他突然重重地挨了一下揍。
• She tripped and went down with a bump .
  她绊了一下，猛地跌倒在地上。
• Wait a moment , let me give you a demonstration .
  先让我做一下示范。
• His tooth gave another red-hot jounce .
  他的牙齿又火辣辣地疼了一下。
• The note taker blows a piercing blast .
  作记录的人用力吹了一下哨子。
• She did not so much as raise an eyebrow .
  她甚至连眉毛也不抖动一下。
• He went back to the table, dipped his pen .
  他回到桌边，蘸了一下笔。