maintains

过去式：

动词过去式: maintained

更多词形：

形容词: maintainable | 名词: maintainability | 动词过去式: maintained | 动词过去分词: maintained | 动词现在分词: maintaining | 动词第三人称单数: maintains |

单词例句：

The country maintains neutrality.

这个国家保持中立。

A member of a particular ethnic group, especially one who maintains the language or customs of the group.

具有该种族语言、风俗的成员某一特定种族集团中的一员，尤指保持着这一集团的语言或风俗习惯的成员

Mankind have been trying every means to maintain the balance of nature.

人类采用一切手段保持生态平衡。

Japan today simply stands too tall and too rich to maintain a low profile.

日本现在太醒目，太富裕了，很难再不引人注意了。

Mindful of the need to maintain efficient communication, the board of directors decided to construct a new communication network.

董事会注意到维持有效通讯的需要，因此决定建立一个新的通信网。

As waves crested the sailor grabbed onto the handspike to maintain balance.

起浪时水手抓住绞盘棒以保持平衡。

My business has been through a bad patch recently and I have been unable to maintain a reasonable profit margin.

最近我的买卖经历了一段不景气的时光，我已不能保持适当的利润率。

It maintains key association when sorting.

排序时保留原有的键名关联。

A raised tank or hopper that maintains a constant pressure or supply to a system, especially the small tank that supplies water to a central heating system.

蓄水塔一个处于高处的用以维持某系统的稳压或供给状况的水箱或漏斗，尤指将水供给中央供暖系统的小水箱