“大梁”怎么读？

“大梁”的英语可以翻译为：summer beam，girder summer，summer tree，cross-beam，crossbeam ...

这根大梁承受了上面那一层的全部重量.This beam bears the whole weight of the upper floor.窗框在大梁的重压下垮掉了.The window frame folded up under the heavy weight of the beam.这些大梁是由支架撑着.The girders are carried on trestles....