| 单词 | 就必须出 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔at a moment's/minute's notice〕She had to leave on a business trip at/on (very) short notice.她一有通知就必须出差。韦氏高阶〔club〕Now you have to play a club if you have one.现在，如果你手里有梅花，就必须出。剑桥高阶〔diamond〕You must play a diamond if you have one.如果你有方块就必须出。牛津高阶 |
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