“杨焕”是个多义词，它可以指杨焕（杭州市综治办副主任）, 杨焕（明朝湖广竹山令）, 杨焕（天津市北辰区委常委）。
这条茂兰原矛头腹的毒性还不确定，但据杨剑焕的说法，“当地人警告我它十分危险”。
The toxicity of the new pit viper species is not yet known, but "kindly local peoples warned me that this snake is very poisonous," Yang added.
杨功焕说，生产香烟的利润最终将远远不及与吸烟有关的疾病的医疗开支。
Profits from producing cigarettes will fall far short of the eventual health costs of smoking-related illnesses, says Yang.
杨剑焕和他的同事们还发现了很多被当地苗族杀掉的死蛇。苗族人认为在野外碰见蛇是非常不吉利的事情，只有马上杀掉它才能将厄运驱走。
Yang's team also found dead snakes that had been killed by people—the Miao, a local minority, believe that a snake encountered in the wild will bring bad luck unless it's killed immediately, he said.
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