您要查找的是不是：
- He took a lot of flak for his stand against abortion. 他因坚持反对堕胎而饱受责难。
- The leading role is played by a complete unknown. 演主角的是一个毫无名气的演员。
- The star of the film is a previously unknown actor. 这部电影里的明星以前是个默默无闻的演员。
- The abortion issue is political dynamite. 堕胎问题在政治上是个爆炸性的问题。
- They are discussing the morality of abortion. 他们正在讨论堕胎的道德性。
- Abortion is illegal in this country. 人工流产在这个国家是不合法的。
- Its greater part is unknown to me. 它的大部分对我是未知的。
- He was an unknown painter one year ago. 一年前，他还是一个不为人知的画家。
- Abortion is illegal in some states. 堕胎在某些州是非法的。
- A panel discussion was held on abortion. 就流产问题举行了小组讨论会。
- Abortion issues are political dynamite. 堕胎问题在政治上是个爆炸性问题。
- This is a fact hitherto unknown. 这是一个至今无人知道的事实。
- A quantity of unknown numerical value. 未知数数值不明的一个数量
- Kate is in bad with Lucy for some unknown reason. 因为某些不为人知的原因，凯特和露西关系不好。
- We use x as the symbol for an unknown quantity. 我们用x表示一个未知数。
- It is no safe wading in an unknown water. 不知水深浅，涉水不安全。
- The investigation was tabled for reasons unknown. 不知何故调查延缓进行。
- They have noticed his inconsistency on abortion. 他们已经注意到他在堕胎问题上态度反覆无常。
- The ownership of the house is still unknown. 这栋房子的所有权至今无人知道。
- The unknown number can be calculated from the data. 通过已知数可以算出未知数。
