keep a tight grip on造句

• Perhaps, but as the housing bust deepens, even the most spendthrift americans will keep a tighter grip on their wallets
  可能看起来是这样，但随着房地产危机的进一步显现，再富裕的美国人也要精打细算的过日子了。
• Zuckerberg cultivates5 the appearance of a dishevelled6 student but he keeps a tight grip on his company . he has joked that the company is aiming for “ world domination
  虽然朱克伯格表现出一副邋遢学生的模样，但对自己的公司他却控制得很牢。他曾开玩笑说公司的目标就是“驾驭世界”。