例句：
They sell hard-core pornography.
他們出售赤裸裸的色情物品。
The pens sell for just 50p each.
這些鋼筆每支只賣50便士。
I'm very tempted to sell my house.
我很想賣掉我的房子。
Some lines sell better than others.
有些品種的貨物銷售得好些，有些則較差。
Why are you in such a hurry to sell?
你為什么如此迫不及待地要賣出？