2. Throughout history, they have flip-flopped between different definitions, wreaking havoc on the names of numbers. 在历史上，他们在billion不同的定义之间已经不断转换多次了，严重破坏了这一数字的命名。
3. We flip-flopped back and forth, thinking on numerous occasions that at last we'd made a decision, only to change our minds again an hour or a day later. 最后我们还是做出了决定，只是在一小时或一天之后，又一次改变了主意。
4. He has flip-flopped on almost everything he once stood for-including his position on taxes, as well as reducing the U. S. military's footprint on Okinawa. 他转变了曾经坚信的所有观点，包括对税务的看法，以及减弱美军对冲绳的控制。
5. The game flip-flopped. In game 1 we played very well in the first half and had a one-point lead and I though they played very well in the first and had only a one-point lead. 在第一场我们开头打的相当好到最后只有1分的领先优势，一如今天他们开局良好最终也只有1分的领先。
