許多美國人都為自己體重超重而擔(dān)憂 - Americans are constantly worrying about extra pounds. 他們想盡辦法來減肥--They try all means to shed their extra pounds。很多人通過跑步,鍛煉來減肥 - try to get rid of their extra pounds by running and exercising.可是飽餐一頓往往會全功盡棄,甚至再加上一,兩磅 - a big meal might add a couple of extra pounds! 今天學(xué)的一個詞組是extra pounds...