The Governor of California Jerry Brown has declared a state ofemergency in response to a major methane gas leak that hasforced thousands of people from their homes on the outskirtsof Los Angeles. Peter Bowes reports from LA. “The natural gasleak has been going on since October. It stems from a vastunderground storage field in Porter Ranch on the outskirts of Los Angeles. Local people havecomplained about headaches nausea vomiting and dizziness although health officials have saidthe gas is not toxic. _____________________.“ 因发生甲烷气体重大泄漏事故住在洛杉矶郊外的数千名美国人被迫撤离加利福尼亚州州长杰瑞R26;布朗宣布全州警戒.皮特R26;彭斯洛杉矶报道.“自去年10月起天然气泄漏问题就一直存在.在洛杉矶郊外波特牧场的大型地下存储地发现了泄露源.尽管卫生部门官员称气体无毒但当地居民抱怨出现头疼、恶心、呕吐和眩晕等症状.____________________________.“