maintenance相关的词根或词缀是: taintentintinu

提示：点击例句中的单词，就可以看到词义解释

The company makes 75 % of its revenues on swimming-pool maintenance and repair . "

它75%的收入来自游泳池维护和维修。

Aside from the costs of installation and maintenance , wang notes that bandwidth in china is extremely expensive .

除去安装和维护的成本，王也注意到中国的宽带成本也相当高昂。

Dams need better maintenance and desilting .

水坝需要更好的维护和疏通。

That means a shorter , lifespan and heavier maintenance .

那意味着更短的使用寿命以及更加沉重的维修费用。

Investigator said faulty maintenance was partly to blame .

调查人员说，保养不善是事故原因之一。