只有主人公先把那些恶龙制服，快乐的结局才有可能。
A happy ending is only possible because the hero has first vanquished the dragons.
只有那些以具有竞争力的价格出售的房子才能抓住真正购买者的兴趣。
Only those homes offered for sale at competitive prices will secure interest from serious purchasers.
那些文件如今在一个保险柜里，只有他有钥匙。
只有那些有办法向这些岛屿传播种子的物种才能进行长途跋涉。
Only those species with ways of spreading seeds to these islands were able to undertake the long journeys.
不过，只有那些家财万贯的人才能买得起每台价值25，000美元的计算机。
Only those with deep pockets, however, could afford the $25,000 cost of each device.
各种干预措施，如抗感染药物，可以增加人口的平均存活时间，但只有那些减缓人体衰老速度的方法才能延长最长寿命。
Various interventions, such as infection-fighting drugs, can increase a population's average survival time, but only approaches that slow the body's rate of aging will increase the maximum lifespan.
但只有那些降落在非常有利位置的孢子才能开始新的生活；绝大多数的孢子降落在贫瘠的土地上。
But only those few spores that settle down in very favorable locations can start a new life; the vast majority fall on barren ground.
只有那些有办法传播到这些岛屿的物种才能进行长途旅行，各种因素在起作用，导致岛上新殖民者的多样化组合。
Only those species with ways of spreading to these islands were able to undertake the long journeys, and the various factors at play resulted in diverse combinations of new colonists on the islands.
只有英国独立党觉察到了自己的机会，支持那些请求用更深思熟虑的方式使用绿地的人。
Only UKIP, sensing its chance, has sided with those pleading for a more considered approach to using green land.
只有这样，任何人才可能看到那些神奇的海岸。
当然，大学毕业生仍然会比那些只有高中学历的人过得更好。
College graduates will still fare better than those with only a high school education, of course.
与只有少数食物中含有的那些营养物质不同，蛋白质存在于所有食物中。
Unlike nutrients that are found only in a few foods, protein is present in all foods.
但是，这一点很重要，它们的繁殖量与那些只有父方抚养幼儿的鸟类的数量相当。
But, and this is important, their clutch volumes matched those of birds that have only male parental care.
只有在那些愿意参与建设和保养公路的社区提出要求后，乡间小路和二级公路才有所改善。
Paths and secondary roads were improved only at the request of communities who were willing to participate in construction and maintenance.
虽然可能只有认知能力健全的人才会从事这些活动，但在那些能够阅读报纸杂志或演奏音乐的人身上并未表现出类似的益处。
Although it is possible that only people who are cognitively healthy would pursue such activities, those who read newspapers or magazines or played music did not show similar benefits.
在那些高血压的人当中，69%正在接受治疗，然而，只有 45%的血压得到控制。
Of those people with high blood pressure, 69% are receiving treatment, yet, only 45% have their blood pressure controlled.
在爱因斯坦的时代，全世界只有几千名物理学家，那些在智力上能与爱因斯坦匹敌的理论家，可能一辆有轨电车就都坐下了。
In Einstein's day, there were only a few thousand physicists worldwide, and the theoreticians who could intellectually rival Einstein probably would fit into a streetcar with seats to spare.
那些只有一个或根本没有兄弟姐妹的人会发现更容易接近他。
Those who have only one or no siblings at all will find it easier to reach him.
对于那些关注这个问题的人来说，这场辩论可能只有几分钟的时间是鼓舞人心的。
The debate has only a few moments that might be inspiring to those who have been following this issue.
只有16%的社交媒体用户表示，他们更有可能从那些在社交网站上登广告的公司处购买产品。
Only 16 percent of social media users say they are more likely to buy from companies that advertise on social sites.
只有在每一个细节上都按他自己的方式行事，才能使他远离那些对他有危险的愤怒。
He could only be kept from furies dangerous to himself by being given his own way in every detail.
那些钱带来的只有悲哀、苦难和不幸。
All that money brought nothing but sadness and misery and tragedy.
也只有那些骨干分子愿意去开会。
It's really only the hard core that bother(s) to go to meetings.
世界上没有奇迹之人，只有那些足够努力等到奇迹发生的人。
There are no special people, just people who put in enough hard work until something special happens.
只有那些涉及货币交易的商品和服务才会被纳入国内生产总值。
Only those goods and services involved in monetary transactions are included in the GDP.
只有那些因为实验要求而强迫自己聊天的人，才发现这是一种多么愉快的体验。
Only those who forced themselves to chat because it was required by the experiment found out what a pleasant experience it could be.
它们只有一个共同点，那就是它们往往会惹恼或威胁那些自认为更开明的人。
They have in common only one thing that they tend to annoy or threaten those who regard themselves as more enlightened expenses.
只有那些可以在简单的事情坚持的人才可能成功。
你必须有勇气去尝试它——而且它只有适合那些身体已经很健康的人！
You have to have the courage to try it—and it's only for people who are already fit and healthy!
只有十分专业化的事件才能被发表，如果那些看起来不会太吸引人的就……
Events that are thought to be too specialized, without the potential for really wide appeal ...
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