Quartz and feldspar are the main components in the eolian sand, but there is some proximal lithoclast in the coarse grain.是什么意思_Quartz and feldspar are the main components in the eolian sand, but there is some proximal lithoclast in the coarse grain.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句