■ market

前面用 in 或 on 都可以，但是有一点细微的差别。用 in 多指人的活动或商情，用 on 则多指商品的上市买卖或价格行市。

• the company's current position in the market公司当前在市场上的地位
• competition in the market市场竞争
• housing bubble in the market市场上的房产泡沫
• The supplier adopted an innovation that soon became popular in the market.供应商采用了一种革新办法，这种革新，很快就在市场上流行起来。
• What separates winners from losers in the futures market?期货市场上的赢家和输家区别在哪里？
• They are seeking to grow aggressively in the New York market.他们正在设法大刀阔斧地在纽约市场上发展。
• This product is readily available in the market.这种产品是市场上现成有货的。
• This product is on the market again.这种产品现在又上市了。
• Some engineered food are now allowed on the market.一些经过基因工程的食品现在允许上市了。
• Which are the hottest stocks on the market?哪些是市面上最热门的股票？
• A new building is on the market today.今天又有一座新的建筑物上市出售。
• It's absurd to have education on the market.教育市场化是荒谬的。
• Would you like to sell your corn on the futures market before you harvest it?您想在玉米还没有收获之前就在期货市场上把它出售吗？

不过，这里的界限不是截然分明的，所以 in 与 on 也常常互用。