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- a long projecting beam or girder fixed at only one end, used chiefly in bridge construction（主要用于桥梁建设的）悬臂; 肱梁; 悬桁。
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- a long bracket or beam projecting from a wall to support a balcony, cornice, or similar structure（支撑阳台或檐口等的）臂梁, 支架。
with obj.［usu. as adj. cantilevered］
1- support by a cantilever or cantilevers用悬臂支撑, 用臂梁支撑：
a cantilevered deck.
一块有悬臂支撑的甲板。
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- no obj., with adverbial of direction project as or like a cantilever如悬臂向外伸出：
a conveyor cantilevered out over the river.
伸过河面的传送带。
词源
mid 17th cent.: of unknown origin.