1. New brain-teaser game stuffed with challenging levels, fascinating game objects and featur..
    新的脑挑逗游戏酿具有挑战性的水平，引人入胜的游戏对象和

2. Similar brain-teaser programs are available on home computers, sometimes free of charge. The scientific jury is still out on the efficacy of such software.
    类似的脑部锻炼软件在家庭电脑上也有，有时甚至是免费的，而科学界对于此类软件的效果还没有一个定论。

3. Similar brain-teaser programs are available on home computers, sometimes free of charge. The scientific jury is still out on theefficacy of such software.
    类似的脑部锻炼软件在家庭电脑上也有，有时甚至是免费的，而科学界对于此类软件的效果还没有一个定论。

4. Then both groups took the brain-teaser test again.
    随后这两组学生要再做一次脑筋急转弯测试。

5. brain-teaser是什么意思

5. - Don''t panic when you first hear a brain-teaser question.
    当你第一次被问及脑筋急转弯问题时，不要慌张。