发音一样，都含有/i:/音。
There are many sheep on that farm.
那个农场里有许多绵羊。
Sheep were grazing in the fields.
羊在野地里吃草。
They kept a small flock of sheep.
他们养了一小群绵羊。
The field had been grazed by sheep.
这块地羊已经啃过了。
The young man sold his house cheap.
这个年轻人便宜出售了自己的房屋。
The wine is cheap. You can afford it.
这款酒很便宜，你能买的起。
It's tough to find cheap food here.
这儿很难找得到便宜的吃的。
sheep和cheap中，sh和ch发音不一样，ee和ea发音一样。
