maintain

• The visiting team maintained a powerful offensive ...
  客队攻势凌厉。
• This school is maintained by a charity .
  该校由一慈善机构资助。
• Each city and province maintains its own camp .
  各省市都有自己的劳改营地。
• These cultures can be maintained indefinitely .
  这些培养物能无限期地保存。
• Policemen maintain order in the streets .
  警察在街上维持秩序。
• She tried to maintain a businesslike look .
  她想要保持一种有条不紊的样子。
• The depth of the river is maintained by dredging .
  通过疏浚保持河道的深度。
• Whate'er betide , maintain your courage .
  无论有什么事发生，都不要惊慌失措。
• The beds maintain their identities .
  地层保持它们的均一性。
• She maintains two sons at university .
  她供两个儿子上大学。