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....
Maybe, if studies on a chemical compound pan out.有可能, 如果某种化学合成物能研究成功的话.A vitamin is a chemical compound that cannot be synthesized by the human body.维生素是一种人体无法合成的化合物。The iron in the chemical compound must be purged.化学混合物...
It's been 200 years since the passage of the Bill of Rights.《人权法案》通过已经200年了。Nintendo hopes to price the add-on modem at less than $200.任天堂希望将该外挂调制解调器的价格定在200美元以下。Three attempts on the British 200-metre record also e...