词汇	yearly annual maintenance
释义	yearly annual maintenance 年度维修
随便看	a camel-hair coat A camel has a big hump on its back a camel is a horse designed by a committee A Camel of Xiangzi a cameltoe a camel train a camel with two humps a camera crew A camera is an instrument of precision A camera supplies the data for colour sorting a camera tripod AC ammeter Acamol a-camp Acampa a campaign against nuclear weapons a campaign against welfare scroungers a campaign club a campaigner for women priests a campaigner on environmental issues a campaign for public office a campaign for sexual equality a campaign of civil disobedience a campaign of misinformation a campaign of suicide bombing