tie beam

例句：

1. 1.The car was tied to the tree with a rope.
   汽车用绳子系在树上。
2. 2.The engineer used a tie beam to support the roof.
   工程师用系绳支撑屋顶。
3. 3.The workers were using a tie beam to lift the heavy box.
   工人们正在使用系绳来抬起沉重的箱子。