“栋梁”怎么读？

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栋梁支撑屋顶全重.The timber carries the whole weight of the roof.他们喧嚣叫嚷之声,把王宫的栋梁震得直摇晃.They made such an uproar that the very timbers of the palace shook.我们房屋的栋梁是香柏木的; 我们的椽子(意难确定)是扁柏木.The beams of our house are cedars; our rafter...