The success of the food halls in large stores is due to their convenience.

　　大商店餐飲部的成功源于它們的便利性。

　　They steadily worked their way through free food and the occasional libation.

　　他們總能設法吃到白食，時不時還能喝上兩杯。

　　I don't think Botswana, due to the climate, could ever be self-sufficient in food.

　　由于氣候因素，我認為博茨瓦納不可能在食物方面自給自足。

　　Other people depend on them for food and clothing and all that.

　　其他人指望著他們提供吃、穿及諸如此類的東西。