我大略地读了一下那封信。I gave the letter a fairly cursory reading.我只知道个大略.I have only a general idea.安大略美术馆是世界上收藏亨利·摩尔雕塑作品最多的美术馆。The Art Gallery of Ontario has the world's largest collection of sculptures by Henry Moore....
They refined crude oil into various petroleum products.他们将原油提炼成各种石油产品.ABout 90 % of the waxes in commerce are recovered by dewaxing petroleum.工业用蜡中约有90%是由石油中回收的.The petroleum exploration geologist working with subsurface...