how to explain "to sell a man is to sell a product"

当一个人出售自己的时候，需像出售一个产品一样。
(意思就是要给自己包装，能把自己的优点体现出来，才会让别人接受）

basically means that when one sells himself, one should adopt the strategy of selling a product. Always reveal one's strengths and hide the weaknesses.

自己写的就不是个句子.

how to只能在从句里面用.

如何解释“出售一个人是来销售产品”

“展示个人就像是销售商品，要推销自己。”