The cost is expensive?

The price is expensive 肯定錯.
The cost is expensive不多見, 但是expensive cost有人使用, 尤其北美低下層社會的廣告傳單(flyer) , 我想在學校, 大學還是避免使用.

Cost, Price 與 Expensive 的配搭

COST, PRICE:

The cost (or price) is + adjective (high, exorbitant, prohibitive, astronomical, huge, immense, moderate, modest, low, minimal)

adjective (high, heavy, astronomical, low, bargain, rock-bottom, knock-down, reduced, discounted, budget, inflated, giveaway) + price

adjective (affordable, attractive, good, competitive, decent, reasonable) + price

EXPENSIVE

expensive + item(s)
item(s) + is (are) + expensive

expensive + item (goods, equipment, commodity, house, car, clothes, food, wine, fare, gift, gadget)

expensive + (restaurant, shop, boutique, hotel)
expensive restaurant =昂貴的餐廳 (是指進餐後結帳昂貴 )

expensive + (taste, lifestyle, hobby, mistake, purchase, repair)

high/low cost/price
expensive/cheap goods

2012-04-06 12:31:15 補充：
"dear" can be used with price and goods.

Expensive is used to describe a goods, but never a price/cost.
For high price/cost = expensive,
therefore it is not suitable for you to use expensive price/cost.