for sale的意思是“待售”“供出售”，即“用于出售”。on sale有兩個(gè)意思，一是表示“出售”，與for sale不同，它表示的是“進(jìn)入銷售環(huán)節(jié)”“處于被銷售的狀態(tài)”；二是表示“廉價(jià)出售”“打折出售”。

sale

noun

[mass noun]the exchange of a commodity for money; the action of selling something

賣，出售

we withdrew it from sale.

我們把它撤下不賣了。

the sale has fallen through.

這樁買賣已經(jīng)告吹。

(sales)a quantity or amount sold.

銷售量，銷售額

price cuts failed to boost sales.

減價(jià)沒能增加銷量。

(sales)the activity or business of selling products.

銷售活動(dòng)，銷售

director of sales and marketing.

銷售部主管。

an event for the rapid disposal of goods at reduced prices for a period, especially at the end of a season

（尤指季末的）廉價(jià)出售，賤賣

a closing-down sale.

歇業(yè)大甩賣。

[often with modifier]a public or charitable event at which goods are sold.

義賣

a public auction.

拍賣

習(xí)慣用語(yǔ)

(up) for sale

offered for purchase; to be bought

供出售；待售

cars for sale at reasonable prices.

價(jià)位合理的待售小轎車。

on sale

offered for purchase

供出售；上市

the November issue is on sale now.

11月號(hào)的雜志現(xiàn)在已經(jīng)在發(fā)售了。

(N. Amer.)offered for purchase at a reduced price.

(北美)削價(jià)出售

sale or return

[usu. as modifier](Brit.)an arrangement by which a purchaser takes a quantity of goods with the right of returning surplus goods without payment

(英)剩貨包退，可退貨經(jīng)售

booksellers normally order books on a sale-or-return basis.

書商通常根據(jù)剩貨包退的原則定購(gòu)圖書。