保持

• Health of body and mind is my gospel .
  保持身心健康是我的信条。
• Neither silence nor inaction is necessary .
  即不要保持沉默也不能按兵不动。
• There is no way to keep the place clean .
  这无法保持此地清洁。
• She had thought to remain a bystander .
  她想保持局外人的角色。
• Mr. elton must compose his joyous looks .
  厄尔吞先生必须保持他欢乐的神色。
• She tried to maintain a businesslike look .
  她想要保持一种有条不紊的样子。
• He held his tongue; and they observed him .
  他保持着沉默，而他们观察着他。
• Bearings keep the shafts steady .
  轴承可以使轴的旋转保持平稳。
• This open weather can not hold much longer .
  这种暖和天气不会长此保持下去。
• The depth of the river is maintained by dredging .
  通过疏浚保持河道的深度。