In fact, until 1900, salt mined and used by residents in the Kanawha River Valley in West Virginia contained trace amounts of iodine.
事实上，一直到1900年，西弗吉尼亚州的卡诺瓦河谷居民开采并食用的盐都富含碘。
2
Jiaqing thirteen years of late summer and early autumn, Kanawha County blow a history rare gale, the crop is mature they lodging, year of harvest has become a foregone conclusion.