several tons of amber were used to make it为什么用复数amber是不可数的

several tons of amber were used to make it为什么用复数amber是不可数的 This gift was the Amber Room,which was given this name because several tons of amber were used ...This gift was the Amber Room,which was given this name because several tons of amber were used to make it. This gift was the Amber Room,which was given this name because several tons of amber were used ...This gift was the Amber Room,which was given this name because several tons of amber were used to make it. tons of是什么意思 tons of pets是什么 50 tons of paint意思 line of 10-tons trucks 请问 tons of it 怎么翻译? tons of后加什么名词 新概念英语句子中过去时ed发音问题1、if a train entered this tunnl 2.failed to.3ordered several tons of.等等很多,根本听不到有ed发音, several millions of several thousands of There are several of several hundreds of 阅读理解 lf you been reading tons and tons of books and have fond that three million tons of rubbish 谓语用单数还是复数 people in Hong Kong produce about 5 million tons of three tons of coal后面用is 还是are