Straw #2 in the Straw Drinking Hierarchy.The difficulty in drawing liquid through the straws increases as your child or client moves up the hierarchy.是什么意思_Straw #2 in the Straw Drinking Hierarchy.The difficulty in drawing liquid through the straws increases as your child or client moves up the hierarchy.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句