notch for ligamentum teres hepatis

例句：

1. 1. The carpenter carefully marked the notch inthe wood.
   木匠小心翼翼地在木头上标记了凹口。
2. 2. The hunter found a notch in the tree that led to ahidden cave.
   猎人在一棵树上发现了一个凹口，通往一个隐蔽的洞穴。
3. 3.The engineer used a notch to adjustthe angle of the roof.
   工程师使用一个凹口来调整屋顶的角度。