千古爭論：番茄到底是水果還是蔬菜？

The confusion about 'fruit' and 'vegetable' arises because of the differences in usage between scientists and cooks. Scientifically speaking, a tomato is definitely a fruit. True fruits are developed from the ovary in the base of the flower, and contain the seeds of the plant (though cultivated forms may be seedless). Blueberries, raspberries, and oranges are true fruits, and so are many kinds of nut.
科學家和廚師們對西紅柿用法的差異常常引起人們的疑惑，這貨到底是水果還是蔬菜？科學來講，西紅柿就是水果。水果就是在花的子房裏發育而成，含有植物的種子（儘管發育而成後的果實有可能是無籽的）。藍莓，樹莓，以及橙子都是水果，很多種類的堅果也是水果。

As far as cooking is concerned, some things which are strictly fruits, such as tomatoes or bean pods, may be called 'vegetables' because they are used in savoury rather than sweet cooking. The term 'vegetable' is more generally used of other edible parts of plants, such as cabbage leaves, celery stalks, and potato tubers, which are not strictly the fruit of the plant from which they come. Occasionally the term 'fruit' may be used to refer to a part of a plant which is not a fruit, but which is used in sweet cooking: rhubarb, for example.
而從烹飪的角度上來看，一些嚴格意義上屬於水果的食物比如說西紅柿和豆莢，就被視爲蔬菜。因爲它們被用來烹飪做成菜餚而不是做成甜食。蔬菜更廣泛地用於其他植物可食用的部分，如捲心菜的葉子，芹菜的莖以及馬鈴薯塊莖，這些從嚴格意義上來說都不是所屬植物的果實。有時候水果還可以用來指用於製作甜食但是非植物果實的部分，比如說大黃。

So, the answer to the question is that a tomato is technically the fruit of the tomato plant, but it's used as a vegetable in cooking.
所以說，問題的答案就是，從技術上來說，西紅柿是西紅柿植株的果實，但是在烹飪上被用作蔬菜。