She has freelanced as a writer and researcher.她从事自由职业，一边写作，一边搞研究。...

Melanesia的音标：Melanesia的英式发音音标为：[ˌmelə'ni:zjə]Melanesia的美式发音音标为：[ˌmɛlə'niʒə, -ʃə]...

Industrial waste burned on the surface of Lake Erie near Cleveland in 1970.1970年工业废物污染了克利夫兰附近的伊利湖湖面.Cleveland has always had a reputation for being a dirty, ugly, boring city, though now they say it is much better.克利夫兰一直...

异山梗菜酮碱...

n.冰岛人( Icelander的名词复数 )...

adj.染黑的，暗黑的...

n.真黑素...

黑盘孢科...

黑素絮凝反应...