frequent

• Their frequent absence on such missions added to the burdens of the planners .
  他们常常不能亲自执行这类任务，这就给制订计划者增加了负担。
• A number of other frequent mistakes are regularly mentioned by the experienced interviewers .
  有经验的口头审查者常提到一些别的常见的错误。
• There are many persons, however, who have frequent bouts of epigastric pain and heartburn for years .
  然而有很多病人常有多年阵发上腹痛和烧心。
• He never thought to disguise from her a knowledge of the haunts which he frequented .
  他从不想向她隐瞒什么，凡是他出入的地方，他都照实告诉她。
• David still loved his wife, but they now began to have frequent and violent quarrels .
  尽管大卫仍然爱他的妻子，但他们之间开始常常发生激烈的口角。
• Barrenness, so frequent among women of fashion, is very rare among those of inferior station .
  不妊症，虽为上等社会所常患，但在下等社会，却极少有。
• So the days went by. our excursions became less frequent because he tired so easily .
  日子就这样过去了，我们出游的次数越来越少，因为他动不动就累了。
• The most frequent need for arterial replacement is in patients with degenerative arterial disease .
  最常见的需要进行动脉移植的病人是动脉退行性病变。
• He often goes to a place called the back kitchen, frequented by all the wits and authors .
  他常常到一个叫做内厨房的地方去，凡是文人和作家都上那儿去。
• I drove back to the town and began to retrace the route, taking frequent glances at the map .
  所以我又驱车返回那个小镇，频频查看地图，重新按路线行驶。