The proportion of food expenses in consumption outlay (the Engel coefficient) dropped to 50.0 percent in 1994 from 54.2 percent in 1990.是什么意思_The proportion of food expenses in consumption outlay (the Engel coefficient) dropped to 50.0 percent in 1994 from 54.2 percent in 1990.在线翻译_英语_读音_用法_例句