a winter coat的用法和样例：
- The front lap of a winter coat should be at least 6 inches wide.
- He grows much of his own food, wears a winter coat until it is ready for the rag heap and buys niceties only when his wife's nagging becomes intolerable.
- She was wrapped up in a thick winter coat.
- Dusted off last year's winter coat.
- Looks like I am gonna have to buy a winter suit, too.