| 1. | List the given information and the unknown quantities .
列出给定数据和未知量。 |
| 2. | If he was to quench his thirst for knowledge, he could do nothing other than explore the unknown quantity .
他要满足求知欲没有别的办法，只能到自己陌生的领域中去探索。 |
| 3. | Ingram, boyish, with unruly red hair and only a year out of harvard business school, was apparently keen and energetic, but otherwise an unknown quantity .
英格拉姆还象个孩子，一头蓬乱的红发，他从哈佛商学院毕业才一年，看上去为人敏捷，精力充沛，但除此之外，这个人到底怎么样，还吃不准。 |
| 4. | The new sales director is still a bit of an unknown quantity
新来的销售部主任大家还不大了解。 |
| 5. | Pronounced the craft an unknown quantity . he has an idea what it can do
.声称他不清楚这架飞机的具体重量或者她具体能达到怎样的高度 |
| 6. | A working equation expresses the unknown quantity in terms of the known ones
分词短语出现在句尾，用逗号隔开，表示伴随情况说明，非常常见。 |
| 7. | . . . pronounced the craft an unknown quantity . he has an idea what it can do . . .
. . .声称他不清楚这架飞机的具体重量或者她具体能达到怎样的高度 |
| 8. | As tronomical calculations are complex and involve many variables that go into the derivation of unknown quantities
作为普通计算则变得复杂，包括了很多变量，使得引出了很多未知量。 |
| 9. | Phrases like " a number " or " the number " tell us our expression has an unknown quantity , called a variable
像“一个数”或“这个数”之类的短语，告诉我们表达式中含有一个未知量，称之为变量。 |
| 10. | It is an algebraic axiom , which makes us proceed from a known to an unknown quantity , and not from an unknown to a known ; but sit down , sir , i beg of you .
这是代数学上的一条定理，我们应该从已知数来推论未知数，而不是从未知数来求已知数，请坐，阁下。 ” |
