这对能源市场来是不是一个很好的例子，第二次观察是正确的，第一次有误导性。
她认为现在重要的是那些地震学家们是不是该做点什么，用她的研究尝试预报下一次大地震。
The question now, she says, is whether seismologists can do anything with her research to try to predict the next big one.
你是不是已经放弃了锻炼和健康饮食的习惯，最后一次去见医生都已经是几年前的事情了？
Have you given up exercising and eating healthy, and the last time you saw a doctor was several years ago?
Synth是不是像Swing一样，在第一次发布时满是bug ？
我来解决你的问题：把第一次献给这位你目前认为是个好人的男生是不是比较明智？
Let me address the question you asked about if it's better to lose your virginity to this current guy who you feel is a good person.
你怎么到哪儿都嫌人多啊？长城是有名的旅游景点，当然有各地的游客啦，还有小商贩卖纪念品！哎，不过，你刚才说，你第一次去长城让你失望，那后来你再去是不是就感觉好多了？LL: Yeah, thatsecond trip rocked!
LL: I'm glad you remember that. My first trip to the Great Wall WAS truly a letdown. It was so crowded with tourists and souvenir peddlers.
打开电视，你会知道在外国发生了什么事，住在远处的人们是怎样生活的，是不是在什么地方有一次精彩的比赛。
Turn on the TV, and you will know what is going on in the other countries, how people live in places far away, and whether there is a good game somewhere.
通常成绩显示是很快的，可是这一次过去了很久，它的上面却仍然一片空白，我真有点怀疑是不是保险丝爆了。
Usually it didn't take long for the times to appear, but now it remained blank for so long I was beginning to worry that a fuse had blown.
邓布利多摇了摇头，他的眼睛是闭着的。哈利不知道他是不是很痛苦。邓布利多闭着眼睛再一次把杯子伸进了石盆，舀起满满的一杯，又喝了下去。
Dumbledore shook his head, his eyes closed. Harry wondered whether he was in pain. Dumbledore plunged the glass blindly back into the basin, refilled it, and drank once more.
你会花费两周的时间去更换它，然后再过两周再更换一次。所以我的建议是通常在90天或者更长的时间的时候再决定是不是要更换住址。
It will take 2 weeks for it to change then another 2 weeks to change it again, so my guideline is usually 90 days or more to decide whether I change my address or not.
记得在一次二学位的课上，我们的讨论题目是钱是不是最重要的。
Once in my Business English class, the topic we discussed was Whether money is the most important thing in life.
我不想告诉你的是不是我的感情，但每一次我想说，我是被迫撤退。
I do not want to tell you is not my feelings, but every time I want to say I have had to retreat.
我不想告诉你的是不是我的感情，但每一次我想说，我是被迫撤退。
I do not want to tell you is not my feelings, but every time I want to say I have had to retreat.
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