grassroots

基层的；草根的；乡村的中释adj

草根；基础英释中释nThe grassroots of an organization or movement are the ordinary people who form the main part of it, rather than its leaders

1 Actually, it does not have to do this while there are enough grassroots on sand for them to survive through dry season. .其实，沙鼠不用往自己的洞里叼，沙地上的草根足以使它们度过旱季的，可沙鼠们不这样做便焦虑不安。

2 You have to join the party at grassroots level from what I understand..据我的了解，你得由基层组织入党。