孕妇的腹部可能会出现细长的妊娠纹。

Pregnant women may develop long ___striae on their abdomen.

青少年在快速发育期常常会出现皮肤上的生长纹。

Teenagers often develop ___striae on their skin during rapid growth spurts.

这块矿石表面的细纹是由古代冰川侵蚀造成的。

The ___striae on the surface of this mineral were caused by ancient glacial erosion.