您要查找的是不是：
- When you create a table, you can add an extra column to be the surrogate key. 当创建一个表时,可以添加一个额外的列作为代理键。
- Add an extra column following each rating to calculate your average grades for entries, exits, and completed trades. 在每个分数后面再加一列，计算你的平均进场得分，离场得分和总计得分。
- She angled her column of chitchat toward teenagers. 她的漫谈栏侧重于十几岁的青少年。
- My extra earnings came in very handy. 我的额外收入可备我不时之需。
- This extra strong glue should do the job nicely. 这种超强度胶应该管用。
- She decided to rent out a room to get extra income. 她为获得额外收入决定租出一个房间。
- She's always saddling extra duties on me. 她总是把额外责任加到我身上。
- The brackets want an extra screw. 托架需要再加一个螺钉。
- He paid the extra cost without a murmur. 他付了额外的费用而毫无怨言。
- He used to write a column for this newspaper. 他过去曾为这家报纸写专栏文章。
- His column is syndicated throughout the world. 他的专栏文章通过报业辛迪加在世界许多报刊上发表。
- This dress is of extra fine quality. 这件衣服的质地特别好。
- Our immediate requirement is extra staff. 我们亟需增加工作人员。
- The column is surmounted by a statue. 柱顶上树立了一尊雕像。
- Extra work kept him (late) at the office. 他因有额外的工作，(很晚)仍留在办公室里。
- Nelson's Column is a famous monument in London. 纳尔逊纪念碑是伦敦著名的纪念碑。
- She decide to rent out a room to get extra income. 她为获得额外收入决定租出一个房间。
- He always read the sports column in the Times. 他总是阅读《泰晤士报》的体育栏。
- The seat back is raked for extra comfort. 这椅背向後倾斜更加舒适。
- I have to be at the office extra early tomorrow. 我明天必须很早就到达办公室。
