on sale后面一般加介词at，意思是出售、销售。
例句：
Ears of corn were on sale at the market.
玉米穗在市场上减价出售。
Our products are on sale at any supermarket.
我们的产品各超级市场都在出售。
扩展资料
The new stamps are now on sale at main post offices.
新邮票现在各大邮局有售。
And they are not on sale at your local department store.
它们不是你那里百货商店的销售品。
He bought a sports jacket on sale at Gowings Mens Store.
他在高英斯男装店买了一件打折的运动上衣。
Today is Mothers Day and all the jewellery is on sale at Richs.
今天是母亲节，瑞奇店的所有首饰全部折价出售。
