n.事变，事件，事故...

The oil is attacked by naturally occurring microbes which break it down.原油受到了自然产生的分解油类物质的微生物的侵蚀。The chances of an error occurring in a computer program increase with the size of the program.计算机程序越长，出错的概率也越大。Oil is refine...

occurring的音标：occurring的英式发音音标为：[ə'kɜ:rɪŋ]occurring的美式发音音标为：[ə'kɜrɪŋ]...

Hardseedness is a naturally occurring phenomenon for many plants, especially leguminous species.摘要硬实是植物中普遍存在的现象.Objective To assess the EKG occurring in acute barium poisoning.目的探讨急性钡中毒时心电图异常的临床意义.RESULTS: The serum albu...