| 11. | She occupied herself with [in] solving some algebra problems. |
| 她忙着做代数题。
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| 12. | Hindu and Arab venturesomeness brought arithmetic and algebra to the fore once again and placed it almost on a par with geometry. |
| 印度人和阿拉伯人的闯劲把算术和代数又一次提高到几乎和几何并驾齐驱的地位。
|
| 13. | George can hardly understand arithmetic,much less algebra . |
| 乔治连算术都不大懂，更不用说代数了。
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| 14. | The course will improve the students' grasp of algebra . |
| 这门课会使学生更好地掌握代数。
|
| 15. | In algebra , the sign "x" usually denotes an unknown quantity. |
| 在代数里，符号“x”常用以表示未知数。
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| 16. | an algebra textbook |
| 代数课本
|
| 17. | the language of algebra |
| 代数语言
|