Erodium seeds have a hard time drilling themselves into the ground, and harder terrains bring their chances to zero.

铒种子很难钻入地下，而较坚硬的地形使它们的机会为零。

Instead, let's call it a " copy of the Erodium plant." This plant produces seeds with a hydromorphic tail-like structure that helps the seed to propel itself into the ground.

相反，我们称其为“Erodium 植物的复制品”。这种植物产生的种子具有水态尾状结构，有助于种​​子将自身推入地下。