Unless we start making some sales, we're done for.
如果我们还卖不出去，那我们就完了。
We cannot understand disease unless we understand the person who has the disease.
除非我们了解有某种疾病的人，否则我们不会了解疾病。
Nothing will be achieved unless we work well together.
除非我们携手合作，否则将一事无成。
Bitten twice, the postman refused to deliver our letters unless we changed our dog.
被我们的狗咬了两次，邮递员拒绝给我们送信，除非我们把狗换了。
"Unless we accept that obesity is a disease, we are not going to be able to tackle it," he concludes.
“除非我们承认肥胖是一种疾病，否则我们将无法解决它。”他总结道。
Expensive things are not inevitably the province of the rich unless we abdicate society's power of choice.
昂贵的东西不一定是富人的专利，除非我们放弃社会的选择权。
Unless we have great talent and are willing to work very hard, we are certain to fail in these occupations.
除非我们有才华横溢，并且愿意努力工作，否则我们肯定会在这些工作中失败。
Unless we are vigilant, it's easy to fail to realize an opportunity when it is in hand and it's just as easy to throw it away.
除非我们保持警惕，否则当机会在手中时，我们很容易意识不到它，也很容易让它流失。
We need economic growth unless we condemn the world's poor to their present poverty and freeze everyone else's living standards.
经济增长是必要的，除非我们想让世界上的穷人深陷贫困的沼泽，或使其他所有人的生活水平停滞不前。
We are constantly surrounded by noise, most of which is not audible to us unless we hold something like a seashell close to one of our ears.
我们经常被噪音包围，大多数噪音是听不见的，除非我们把海贝之类的东西靠近一只耳朵。
The fact is that no matter how nicely we dress, or how beautifully we decorate our home, we can't be truly elegant unless we have good manners because elegance and good manners go always hand in hand.
事实上，不管我们穿得多么漂亮，或者我们把家里装饰得多么精致，如果我们不礼貌，我们都不可能真正做到优雅，因为优雅和礼貌总是相辅相成的。
The boat will sink unless we bail out.
我们若不排水，船就要沉。
We'll lose the game unless we try our best.
如果我们不全力以赴，比赛就会输。
Unless we talk to them, we will feel worse.
除非我们和他们谈谈，否则我们会感觉更糟。
In summer, food will go bad quickly unless we put it into a fridge.
在夏天，食物会很快变坏，除非我们把它放进冰箱。
We'll cause more pollution unless we find ways to recycle more rubbish.
除非我们找到回收更多垃圾的方法，否则我们将造成更多的污染。
Our business won't improve unless we offer better service to our customers.
除非我们为顾客提供更好的服务，否则我们的生意不会有起色。
We can't keep abreast of the developing situation unless we study harder.
我们如果不加强学习，就会跟不上形势。
We will not attack unless we are attacked; if we are attacked, we will certainly counterattack.
人不犯我， 我不犯人; 人若犯我， 我必犯人。
Not really unless we take a taxi.
不坐出租车的话不行。
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