for sale on sale的區別：中文意思不同、用法不同、側重點不同。for sale意為供出售、待售，可指抽象的出售的行為，也可指具體的出售的動作；on sale意為折價銷售、減價出售，側重于表述廉價、有折扣的銷售。
for sale和on sale的區別如下：意思不同。for sale的意思是“供出售，待售”；on sale的意思是“折價銷售，減價出售”。
用法不同。for sale可指抽象的出售的行為或具體的出售的動作，也可指某產品的銷售總量；on sale可指某商品以低于其原有價格水平的價格出售，即“廉售，賤賣”，還可指某商品的“銷路，市場需求”。側重點不同。for sale側重于描述正在銷售，正常價格；on sale側重于表述廉價，有折扣的銷售。
1. The new collection of designer handbags is now on sale at our store. (我們店里現在正在銷售新款設計師手袋。)
2. These shoes were originally priced at $100, but now they are on sale for only $50. (這些鞋子原價100美元，但現在只賣50美元。)
3. The bookstore is having a big book on sale event this weekend. (這個周末書店將舉辦大型圖書特價活動。)
4. Our company's products are always on sale, with discounts up to 50%. (我們公司的產品總是有折扣銷售，最高可達五折。)
5. The tickets for the concert will go on sale next week. (音樂會門票將于下周開始銷售。)
For sale, shop premises with frontages on two streets.
出售商業用房，前有空地兩面臨街。
She has put her house up for sale.
她的房子現在出售。
We have many types of cosmetics for sale.
我們有許多種化妝品待售。
We have several early folios for sale.
我們有幾本早期的對開本書出售。
Something bought or for sale; a purchase.
購買買來的或待售的東西; 一樁買賣
Mr Hill: Good afternoon. I believe that this house is for sale.
希爾先生：下午好。我想這房子是出售的吧？
Last week my wife and I arranged to see a house that was for sale.
上星期我和妻子準備去看一所待售的房子。
The goods for sale are set out attractively.
出售的貨物陳列得非常誘人。
