chuck with holdfast

例句：

1. 1. The engineer chuckedthe heavy load onto the holdfast ofthe ship.
   工程师把沉重的货物放在船的坚固支撑物上。
2. 2. The oldtree was used as achuck with holdfast tosupport the roof.
   这棵老树被用作一个坚固的支撑物来支撑屋顶。
3. 3. The builders used wooden planksas chuck with holdfast to reinforcethe structure.
   建筑工人使用木板作为坚固的支撑物来加固结构。