Parasitism is a kind of predator-prey relationship in which one organism, the parasite, derives its food at the expense of its symbiotic associate, the host.
寄生是一种捕食者与被捕食者之间的关系，寄生者利用共生伙伴——宿主来获取食物。
An example of a parasite is a tapeworm that lives inside the intestines of a larger animal and absorbs nutrients from its host.
寄生虫的一个典例是绦虫，它生活在更大的动物的肠道内，从宿主那里吸收营养。
Benzon, in responding to Peter Railton’s post here at The Stone, points out the limits of this metaphor and proposes the “chess board and game” instead. I prefer a simple host-parasite analogy.
Benzon在The Stone论坛上回应Peter Railton的文章时指出了上述比喻的局限性，并提出了“棋盘和游戏”的比喻来代替，我更喜欢简单的主体-宿体的比方。
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