英语语法分析

Gulf of Mexico - Origins, Waters, and Biota.

墨西哥湾——起源、水域及生物群。

They have had serious effects upon the biota of stream.

它们对河流中的生物群体产生严重影响。

Over time, some of the excess C-14 has become buried or incorporated in biota around the globe.

随着时间推移，一些过剩的碳14已被掩埋或整合在全球生物区中。