earthworm

An earthworm wriggled out of the wet garden soil. ▶

一条蚯蚓从花园湿润的泥土中蠕动着钻了出来。

Earthworms improve soil structure by creating tunnels that allow air and water to move more freely.

蚯蚓通过挖掘通道，让空气和水更自由地流动，从而改善土壤结构。