roof beam
常见例句
- At last they got to the point of installing the roof beam .
最后，工程进行到安装屋顶大梁这一紧要步骤了。 - He said, My friends, we cannot use fresh green wood to make the roof beam .
他说：朋友们，新鲜的木材来不能用来制造，它会变弯并下陷的。 - Then he secretly constructed the most important part of the building, the roof beam that would hold the roof together.
然后，他私下造好了工程中最重要的部分–支撑整个屋顶的大梁。 - Sound danced from floor to roof beam.
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