They cast doubt on his words when it suited their case, but swallowed them whole when it did not.
他的话与他们的情况吻合时他们就怀疑，但不吻合时他们却完全相信。
When would they be hired again? Perhaps, as the saying goes, when pigs fly.
他们什么时候会被重新雇用？也许正像俗话说的，等到猴年马月吧。
Drugs are only approved after tests have demonstrated that they are relatively safe when used as directed and when their benefits outweigh their risks.
药物只有在试验证明它们是相对安全的情况，且其益处大于风险时，才会被批准使用。
When young people are critical of an over-tweeting president, they reveal a mental discipline in thinking skills—and in their choices on when to share on social media.
当年轻人批评一位过度发推特的总统时，他们在思维技能以及选择何时在社交媒体分享方面展现出一种精神自律。
When I told a group of school children who displayed helpless behavior that a lack of effort led to their mistakes in math, they learned to keep trying when the problems got tough.
当我告诉一群表现出无助行为的学生说，是缺乏努力导致了他们数学上的错误，他们就学会了在问题变得棘手时继续尝试。
So when young people are critical of an over-tweeting president, they reveal a mental discipline in thinking skills and in their choices on when to share on social media.
所以当年轻人指责总统过多使用 Twitter的时候，他们在思维方式上以及选择何时在社交媒体上分享的方面表现出了一种精神自律。
This unusual configuration of symmetrical cutter claws did not change when the lobsters were subsequently placed in a manipulatable environment or when they lost and regenerated one or both claws.
当龙虾随后被放置在一个可操纵的环境中，或者当它们失去一个或两个爪子后再生时，这种不寻常的对称刀状爪子的结构并没有改变。
When we consider the nightly lifestyle of these bats, we will see they have to be sensitive to the changing light levels because this is how they sense when to start hunting.
当我们考虑这些蝙蝠的夜间生活方式时，我们会发现，它们必须对不断变化的光线水平保持敏感，因为这是它们感知何时开始狩猎的方式。
When they were little, they liked Barbies; when they were bigger, they hung out at the roller rink on Friday nights.
当他们小的时候，他们喜欢芭比娃娃；在他们长大一些后，他们周五晚上都会去旱冰场。
Student tutors feel upset when their teachable students fail, but happy when these virtual pupils succeed as they derive pride and satisfaction from someone else's accomplishment.
当能教导的学生学习不理想时，学生导师会感到沮丧，但当这些虚拟学生学习获得成功时，他们会感到愉悦，因为他们能从他人的成就之中获得自豪和满足。
When monkeys get together to kill and eat somebody, they make a kind of a laughing noise and chimpanzees laugh when they tickle each other.
当猴子们一起猎杀其他动物时，它们会发生出一种笑声，黑猩猩在互相挠痒痒的时候也会发出笑声。
I smoked when they were sleeping or when they were with the babysitter.
我在他们睡觉或和保姆在一起的时候才抽烟。
The researchers discovered that the number of risks teens took more than doubled when their friends were watching, compared with when they played alone.
研究人员发现，与单独玩耍时相比，青少年在朋友旁观时所承担的风险是前者的两倍以上。
These genes were much more active when the men had fasted before exercise than when they had breakfasted.
这些基因在人们运动前禁食时比吃早餐时活跃得多。
523 students cleaned their teeth within ten minutes of eating. When possible, they used a toothbrush; when this was impossible, they washed their mouth thoroughly with water.
523名学生在吃饭后十分钟内刷牙。如果情况允许的话，他们会使用牙刷；否则，他们会用水彻底清洗口腔。
If a bond was issued when interest rates were lower, they might have a 4% coupon when the prevailing rate is 6%.
如果一只债券在利率较低的时候发行，在现行汇率为6%的的时候，它的票面利率可能为4%。
The brains of teenagers, but not adults, showed greater activity in two regions associated with rewards when they were being observed by same-age peers than when alone.
青少年在被同龄的人观察时，大脑中两个与奖励相关的区域比独处时表现出更剧烈的活动，成年人则不然。
Algorithms that were right 95% of the time when they were dealing with a 13,000-image database, for example, were accurate about 70% of the time when confronted with 1 million images.
例如，在处理1.3万幅图像的数据库时，算法的准确率为95%，而在处理100万幅图像时，算法的准确率约为70%。
Most obviously, the men displayed lower blood sugar levels at the start of their workouts when they had skipped breakfast than when they had eaten.
最明显的是，这些人在锻炼开始时不吃早餐比吃早餐时血糖水平更低。
523 students cleaned their teeth within ten minutes of eating when possible they used a toothbrush, when this was impossible they washed their mouth thoroughly with water.
523名学生在吃饭后十分钟内刷牙。如果情况允许的话，他们会使用牙刷；否则，他们会用水彻底清洗口腔。
Ships last a lot longer when they go to sea than when they stay in the harbor.
出海的船舶寿命要比留在港口里的船舶寿命长得多。
When the children have a larger number of toys there seems to be a distraction element, and when children are distracted they do not learn or play well.
当孩子们有更多的玩具时，似乎就会有分心的因素，而当孩子们分心时就不能很好地学习或玩耍。
The remaining 423 students merely cleaned their teeth when they went to bed and when they got up in the morning.
剩下的423名学生只在上床睡觉和早上起床的时候刷牙。
As is often the case with human beings, many animals sleep a lot when young, but sleep much less when they get older.
和人类一样，许多动物年幼时睡得多，但长大后睡少了很多。
For example, the tobacco plants gave out a stronger "scream" when they were deprived of water than when their stems were cut.
例如，烟草植物在缺水时发出的“尖叫”要比它们的茎被切断时更强烈。
When I am sad and upset, they cheer me up; when I feel happy and excited, they share my feelings.
当我伤心难过时，他们使我振作起来；当我感到高兴和兴奋时，他们分享我的感受。
You may feel bad when you believe you are wrong. When children express their feelings and are told that it's nothing to cry about, they come to know that they themselves are bad.
当你认为自己错了的时候，你可能会觉得很糟糕。当孩子们表达他们的感受，却被告知这没什么可哭时，他们就会认为自己有错。
When the conditions exist, go ahead; when they don't exist, then create them and go ahead.
有条件要上，没有条件，创造条件也要上。
So an obvious question arises: can we spot bubbles when they occur and predict when they are about to burst?
因此，一个显而易见的问题出现了：我们能不能发现泡沫何时发生，并预测它们何时破裂？
And don't get so upset when they mess up, when they don't do what they're "supposed" to do... because they're supposed to mess up.
并且，当他们把事情弄糟，当他们没有做“本该”做的事时，不要那么烦恼……因为你早料想到他们会把事情弄糟。
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