此类事件只有当外界条件有利时才会发生。
Such events occur only when the external conditions are favourable.
只有当你把它变成自己的一部分时，它才会完全为你所有。
Full ownership comes only when you have made it a part of yourself.
只有当程序员粗心大意时，它们才是危险的。
只有当一个人意识到这一点，才能够射中靶心。
Only when one has accepted that, is there any possibility of scoring a bull's eye.
只有当你知道你的目标在哪里时，你才会有勇气。
只有当她尖叫着找塞巴斯蒂安时，才能听到她的声音。
Only when she shrieked for Sebastian could her voice be heard.
他告诉儿子，只有当劳动的果实被浪费时，才会感到痛苦。
He told his son that one feels pain only when the fruits of labor are wasted.
只有当我们冷静应对紧急状况时，我们才能更好地解决问题。
Only when we react to emergencies in life calmly, can we solve problems in a better way.
莱勒说，只有当我们遇到问题时，大脑的这个区域才会工作。
Lehrer says that this area of the brain lights up only after we've hit the wall on a problem.
只有当你失去某人的时候，你才能完全意识到你有多珍惜他。
It is only when you nearly lose someone that you become fully conscious of how much you value him.
只有当呼吸、意识和姿势结合成一体时，才是真正的瑜伽练习。
Only at the time when one's breathing, mind and posture get into one, one is in the condition of yoga exercise.
只有当它消失的时候，你才会希望你做了更多的事情来保护它。
Only when it's gone do you wish you'd done more to protect it.
只有当我们访问他们的地区，我们才发现这些故事有些不对劲。
Only when we visit their areas, do we find that those stories are something wrong.
他说，只有当人们没有做好准备的时候，极端事件才会变成灾难。
He says extreme events become disasters only when people fail to prepare for them.
有时候，只有当困难被克服了，我们才会意识到它为我们做了什么。
Sometimes it's only when a difficulty is removed that we realise what it was doing for us.
只有当每个动物都觉得自己没有被欺骗时，这种合作才有可能是稳定的。
Such co-operation is likely to be stable only when each animal feel it is not being cheated.
只有当你认为患者有权不受限制地享有已证劣等治疗时，这才是正确的。
That would be true only if you believed that patients should have an unrestrained right to treatments proven to be inferior.
只有当消费者被激励并能够经历费力的认知过程时，推理活动才可能发生。
Inferential activity is likely only when consumers are motivated and able to engage in effortful cognitive processes.
只有当我们所有人共同努力消除各种污染时，我们才能期望有一个更好的环境。
Only when all of us join efforts to eliminate pollution at all levels can we expect to have a better environment.
只有当你把你的马车套在比你自己更大的东西上时，你才会意识到你真正的潜力。
It is only when you hitch your wagon to something larger than yourself that you will realize your true potential.
只有当许多研究结合在一起进行荟萃分析时，心灵感应的微弱信号才会真正显现出来。
Only when many studies are combined in a meta-analysis will the faint signal of telepathy really become apparent.
只有当我们为每一个即将到来的机会做好充分的准备时，我们才能在某一天获得成功。
Only when we make full preparations for every coming opportunities, can we succeed one day.
"只有当嗅觉能力因为某种原因受到损害时，我们才开始明白嗅觉对健康的重要作用。
It is only when the faculty of smell is impaired for some reason that we begin to realise the essential role the sense of smell plays in our sense of well-being.
只有当你不再回避不可避免的事情，而是坐着、站着或躺着写作时，初稿才能跃然纸上。
The first draft will appear on the page only if you stop avoiding the inevitable and sit, stand up, or lie down to write.
只有当我们所有人携手消除各级噪音污染时，我们才能拥有更好的环境和更美好的未来。
Only when all of us join hand in hand to eliminate noise pollution at all levels, can we have a better environment and a more beautiful future.
只有当一个新的观察，比如“那个球是蓝色的”，与已有的陈述之间产生矛盾时，才会出现问题。
Problems occur only if a contradiction develops between a new observation, say, "That ball is blue", and the preexisting statements.
一般来说，只有当行为简单而且周围的人和你有相似的信念时，你的态度才会表现得与内在一致。
In general, your attitudes will be internally consistent only when the behavior is easy, and when those around you hold similar beliefs.
只有当船体从升降架上自由悬挂，脱离海床和周围泥浆的吸力作用时，打捞工作才进入第二阶段。
It was only when the hull was hanging freely from the lifting frame, clear of the seabed and the suction effect of the surrounding mud, that the salvage operation progressed to the second stage.
这些基于时间的技术已经融入了我们的日常生活，只有当它们不起作用时，我们才会意识到我们对它们的依赖。
Integral have these time-based technologies become to day-to-day existence that our dependency on them is recognised only when they fail to work.
只有当母老虎在保护自己的幼崽时，或者当公虎在保护母老虎不受其他雄性动物的注意时，它们才会殊死搏斗。
Tigers fight to death only when a tigress is defending her young, or when a tiger is guarding a tigress from the attentions of other males.
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