No one really knows how many different faces someone can recall, for example, but various estimates tend to hover in the thousands—based on the number of acquaintances a person might have.

例如，没人确切地知道一个人究竟能记住多少张不同的面孔，但是各类评估倾向于几千张上下——依据一个人可能相识的人数来判断。

youdao

The value tends to hover around 40 baht to one US dollar.

其价值维持在40铢兑换1美元左右。

youdao

Remind yourself not to hover and let them spend some time with a close friend or a beau.

提醒自己不要跟在孩子身边，放手让他们去找男女朋友。

youdao

They always seem to hover over their children.

VOA: special.2009.07.09

Linux, the free, open source operating system, continues to hover at a little over one percent.

FORBES: Move up http://i.forbesimg.com t Move down

On the practice green before the playoff Rotella emerged from the crowd to hover by Harrington's side.

FORBES: How Not To Choke

With interest rates continuing to hover at historically low levels, investors looking for income are understandably frustrated.

FORBES: Stocks are Not Bonds, CDs, or Savings Accounts