如果一种外来植物入侵了地上的动植物群落,就会改变地上群落和地下土壤群落之间的联系。
If a nonnative plant species invades an above-ground community of flora and fauna, it can alter links between the native above-ground community and the below-ground soil community.
他是国家抵抗组织的一员,这个组织实际上是一个地下军事组织,他们主张坚决把入侵敌人从本国赶出。
He was a member of the National Resistance, which is an underground military organization resolute in driving out the invading army from their country.
在沿海地区开采地下水,应当经过科学论证,并采取措施,防止地面沉降和海水入侵。
Exploitation of groundwater in coastal areas shall undergo scientific demonstration, and measures shall be taken to prevent sinking of land surface and encroachment by seawater.
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