Ballast

(noun.) any heavy material used to stabilize a ship or airship.

(noun.) an electrical device for starting and regulating fluorescent and discharge lamps.

(noun.) an attribute that tends to give stability in character and morals; something that steadies the mind or feelings.

(noun.) coarse gravel laid to form a bed for streets and railroads.

(verb.) make steady with a ballast.

吉米编辑

• These are feather-weights; they want ballast. 夏洛蒂·勃朗特. 雪莉.
• It meant the apprehension of material which should ballast and check the exercise of reasoning. 约翰·杜威. 民主与教育.
• A ballast of water was carried in a compartment under each car. 威廉·亨利·杜利特. 世纪发明.
• The sleepers were laid upon the natural grade, and there was comparatively no effort made to ballast the road. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• He says he feels as if he 'could make a prosperous voyage now with me aboard as mate, and lots of love for ballast'. 路易莎·梅·奥尔科特. 小妇人.
• He was in charge of a fixed engine on Willington Ballast Hill that drew the trains of laden coal-cars up the incline. 鲁伯特·萨金特·荷兰. 历史性发明.

编辑:米兰达