1. The problem is still in controversy.
    这个问题仍在辩论中。

2. To avoid the controversy of other character programs used in US schools, Gauld says the concept of doing your best has nothing to do with forcing the students to accept a particular set of morals or religious values.
    为了避免美国中学使用的其他品格培养方案所引发的争议，高尔德解释说，"全力以赴"这一概念并不是要强迫学生接受某一套道德原则或宗教观念。

3. Such controversy is familiar ground to Brian Newman,
    这样的争论布赖恩·纽曼已习以为常了。

4. In his own lifetime Galileo was the centre of violent controversy;
    伽利略在世时是激烈论战的中心。