I couldn't concentrate, presumably because I was so tired.
我的精神集中不起来，大概是太累了吧。
Presumably you'll be given moving expenses from the Portugal job.
大概你会从葡萄牙的工作中得到搬家的费用。
Presumably, you keep your doors locked at night and while you're away.
想必你在晚上、以及不在家的时候都锁着门。
Presumably, the more often it wanders from home, the more it's likely to be exposed to predators.
推测来讲，它离家越频繁，就越有可能暴露在捕食者面前。
Presumably, those environmental disasters could have been responsible for the mass extinction, including the death of the dinosaurs.
据推测，这些环境灾难可能是物种大规模灭绝的成因，包括恐龙的灭绝。
If insects paid attention to such advertisements, they might be prompted to lay their eggs on a duller, and presumably less resistant host.
如果昆虫注意到这样的广告，这可能会促使它们将卵产在一个更迟钝、据推测更不会抵抗的寄主上。
Having made their wealth and reputations elsewhere, they presumably have enough independence to disagree with the chief executive's proposals.
他们在别处获得了财富和声誉，想必有足够的独立性来反对首席执行官的提议。
The spear is presumably the murder weapon.
这矛很可能就是凶器。
Presumably this is where the accident happened.
这大概就是事故现场。
Presumably you'll be given moving expenses from the Portugal job?
可能这份葡萄牙的工作能给你提供搬家的费用？
It began suddenly to slow down, presumably in obedience to a signal.
它突然开始减速，大概是为了遵从一个信号。
These textbooks are, on the whole, small, presumably inexpensive to produce, but well set out and logically developed.
总体来说，这些教科书很小，成本应该也不高，但是内容陈述恰当，具有逻辑性。
Forehead rubbing by male deer on buck rubs presumably sends a great deal of information to other members of the same species.
雄鹿摩擦前额很可能向同类中的其它成员发出了大量信息。
When the egg is fertilized, the substances become active and, presumably, govern the behavior of the genes they interact with.
当卵子受精时，这些物质变得活跃起来，并可能控制与它们相互作用的基因的行为。
When the American cheetahs disappeared, their influence on the evolution of pronghorn and presumably on other prey animals stopped.
当美洲猎豹消失后，它们对叉角羚进化的影响就停止了，对其他猎物的影响应该也停止了。
Logically we should learn about things before doing them and that is presumably why the experts enforce this in our educational system.
从逻辑上讲，我们应该在做事之前先了解清楚，这大概就是专家们在我们的教育体系中强制推行这一做法的原因。
Nor were extinctions confined to large animals: small animals, plants, and insects disappeared, presumably not all through human consumption.
灭绝也不仅仅局限于大型动物：小型动物、植物和昆虫的消失，或许不是全部都由于人类的食用而消失。
The ancient Maya were presumably more experienced and did better, but nevertheless they too must have faced risks of crop failures from droughts and hurricanes.
古代玛雅人也许经验更丰富，做得更好，但他们也一定会面临干旱和飓风引起谷物歉收的风险。
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