7 七 There are seven cookies left. 还剩下七个饼干。 seven of Sweden’s top financial experts 瑞典七位顶级金融专家 Ten people were invited but only seven turned up. 邀请了10个人，但只有7个人出现。 Can you lend me seven dollars? 你能借给我七美元吗？ a seven-month contract 七个月的合同 Look at page seven. 请看第七页。 Seven and two is nine. 七和二是九。 Two sevens are fourteen. 二七一十四 I can't read your writing—is this meant to be a seven? 我看不懂你的著作，这意味着要七点吗？ The bulbs are planted in fives or sevens (= groups of five or seven). 鳞茎以五分之一或七分之一种植。 We moved to America when I was seven (= seven years old). 我七岁（七岁）时，我们搬到了美国。 Shall we meet at seven (= at seven o'clock), then? 那我们可以在七点（七点钟）见面吗？
Word OriginOld English seofon, of Germanic origin; related to Dutch zeven and German sieben, from an Indo-European root shared by Latin septem and Greek hepta.
Idioms
at sixes and sevens
- (informal)
in a confused state; not well organized 乱七八糟；凌乱 I haven't had time to clear up, so I'm all at sixes and sevens. 我还没来得及清理，所以我只有六七岁。
the seven-year itch
- (informal, humorous)
the desire for new sexual experience that is thought to be felt after seven years of marriage 七年之痒（婚后七年另觅新欢的欲望）