下层林丛

例句：

1. 1.The forest was densely packed with underbrush.
   森林里灌木丛密布。
2. 2.The trail winds through the underbrush.
   小径穿过灌木丛。
3. 3. The underbrush provided cover for the animals.
   灌木丛为动物提供了掩护。