naturally occurring是什么意思
问题描述：
naturally occurring是什么意思
答
naturally occurring天然存在的；自然存在；自然发生；自然产生双语例句1. The oil is attacked by naturally occurring microbes which break it down.\x09原油受到了自然产生的分解油类物质的微生物的侵蚀.2. Oil ...