hook-like structure

例句：

1. 1. The spider's web is a classic example of a hook-like structure.
   蜘蛛网是典型的钩状结构。
2. 2. The design of the bridge has a hook-like structure that enhances its stability.
   这座桥的设计有一个类似钩的结构，这增强了它的稳固性。
3. 3. The scientist observed a hook-like structure in the sample, which could be a clue to its origin.
   科学家观察到样本中有一个类似钩的结构，这可能是其起源的线索。