cow和window发音不相同
cow释义：
n. 奶牛，母牛母兽
vt. 威胁，恐吓
例句：
This farmer has many cows in his farm.
这个农夫的农场里有很多奶牛。
词组：
milk cow奶牛乳牛
window释义：
n. 窗窗口窗户
例句：
He believes that this is a good window for his promotion.
他认为此时正是他升职的好时机。
词组：
out of the window不再受重视
in the window贴在窗口上摆在橱窗里
transfer window转会市场
