我已買了一袋蘋果。

　　I have bought a bag of apples.

　　要吃有益于健康的午餐；即使必須吃快餐，也要確保對(duì)健康有益——一個(gè)蘋果要遠(yuǎn)勝于一袋炸薯?xiàng)l。

　　Eat a healthy lunch and if you must snack, make sure it is healthy too-an apple rather than a bag of chips.