1. Few observers believe the president will do an about-face and start spending more. 没有几个观察家认为总统将做出彻底改变并开始增加支出。
2. This past December, Facebook did an about-face on privacy. 刚过去的十二月，Facebook的隐私政策上演大变脸。
3. He threatened to stop helping us, but did a complete about-face. 他威胁要停止帮助我们，但是却来了个彻底的大转变。
4. Joost started by offering video through its own software application, but lost out to Hulu and did an about-face. Joost曾经通过自己的软件提供看影像，但是输给了Hulu，最后不得不做出改变。
5. The about-face of Morris Chafetz, a doctor who served on the commission that recommended increasing the drinking-age to 21, has also raised eyebrows. 就连曾经在建议将饮酒年龄提高到21岁法定年龄委员会任职的医生Morris Chafetz，近来态度也发生了180度的转变，令人大跌眼镜。
