crossbeam
n. 横梁;大梁
例句
He hung the light from a steel crossbeam in the roof.
他在屋顶上的钢横梁上吊上电灯。
《柯林斯英汉双解大词典》
Connecting the crossbeam to the apex of a triangular truss.
连接大梁和三角孔桁梁顶点的支柱。
If you mind, that hurriedly tidies up crossbeam once, that nothing knows your this stuff!
你若介意,那就赶紧的收拾收拾回大梁吧,那没人知道你这事!