maintain的过去式和用法例句

　　maintain有维持;维修;保养;坚持;断言等意思，那么你知道maintain的过去式是什么吗?下面学习啦小编为大家带来maintain的过去式和用法例句，希望对大家的学习有所帮助!

　　maintain的过去式和其他时态：

　　过去式: maintained

　　过去分词: maintained

　　现在分词: maintaining

　　maintain的用法：

　　maintain的用法1：maintain的基本意思是“保持”“继续”,指采取某种手段或措施保留一种有价值的东西,使其获得保养并维持良好状况,有时也指使事情能正常持续下去,引申可表示“坚持”“主张”“供给”“赡养”等。

　　maintain的用法2：maintain只用作及物动词,后面可接表示生命、法律、秩序、和平、友谊等名词作宾语; 也可接that从句,还可接以“to be+ adj .”充当补足语的复合宾语。

　　maintain的过去式例句：

　　1. They have maintained their optimism in the face of desolating subjugation.

　　面对遭征服的悲惨命运，他们保持了乐观的态度。

　　2. He maintained an ambivalent attitude to the Church throughout his long life.

　　在他漫长的一生中，他对____信仰始终是一种摇摆不定的态度。

　　3. The married women of Shitamachi maintained the custom of blackening their teeth.

　　下町的已婚女性还保留着把牙齿涂黑的习俗。

　　4. He had maintained a rigid diet, shedding some twenty pounds.

　　他严格地坚持节食，减了差不多20磅。

　　5. He has maintained that the money was donated for international purposes.

　　他坚称这笔捐款将用于国际用途。

　　6. Fourthly, the natural enthusiasm of the student teachers should be maintained.

　　第四点，实习教师本来的热情应该得到保持。

　　7. Crowley maintained a stream of invective and abuse against Waite.

　　克劳利连珠炮似的对韦特骂个不停。

　　8. Mr Matthews maintained that he had done nothing improper.

　　马修斯先生坚称他没有做过非法的事情。

　　9. Control of materials could be maintained by locking up bombs.

　　把炸弹锁起妥藏可实现对物资的控制。

　　10. The cars are getting older and less well-maintained.

　　车越来越旧，保养得也越来越差。

　　11. She maintained a kind of meek-ness.

　　她保持着一种温顺的态度。

　　12. He maintained a professional demeanour throughout.

　　他始终保持着专业人才的风度。

　　13. Throughout his trial he maintained a dignified silence.

　　在整个审讯过程中，他始终沉默以保持尊严。

　　14. His car has been well maintained and is in excellent condition.

　　他的车子保养得很好,各种机件状况极佳.

　　15. The king maintained order within the bounds of his realm.

　　国王在其王国的疆界之内维持着秩序.