新华财经东京7月31日电（记者李诗萌 蓝建中） 30日纽约外汇交易市场，日元对美元汇率跳涨，一度升至1美元兑158日元区间。
此前，受中东局势不确定性及国际油价上涨推升通胀预期等因素影响，国际市场持续出现买入美元行情。此外，市场对日本政府积极财政政策可能进一步加重财政负担的担忧升温，也令日元持续承压。
今年4月底至5月，日本政府和日本央行累计实施约11.7万亿日元的汇率干预，但未能扭转日元贬值趋势。随着日元持续走弱，市场此前一直高度关注日本当局是否会再次出手干预汇市。
日本央行将于31日公布货币政策会议结果，市场普遍预计将维持政策利率不变。
编辑：吴郑思
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