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When a caterpillar sheds its final exoskeleton and mutates into a chrysalid, it is already well on its way to becoming a butterfly.
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当毛虫脱掉最后的外骨骼，变成蝶蛹时，它已踏上了化蝶之路。 |
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When a cell needs to make new proteins, the helix untwists and the rungs split apart so the cell's machinery can read the code.
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当细胞需要制造新蛋白质时，双螺旋就拆解开来，其中的横梯也一分为二，让细胞里的装置可以读取编码。 |
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When a change comes, some species feel the urge to migrate.
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当环境突变来临时，一些物种迫切于转移。 |
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When a character reaches a suitably high level, level 40 or higher it can start specializing in skills to become a hero class as found in Warcraft III.
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当一个角色达到一个比较高的等级时（40或更高），就可以开始对技能的专精从而成为一个英雄职业，如在魔兽3中所看到的一样。 |
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When a charged particle is in a magnetic field, it tends to travel along that field's lines of force, spiralling as it goes.
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当一个带电微粒在磁场中时，它会倾向于沿着磁力线螺旋运动。 |
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When a charged particle zips through the chamber, the vapour condenses into a trail of droplets showing the particle's path and, if the box is placed in a magnetic field, its electrical charge.
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当一个带电粒子快速穿越云室时，水汽会凝结形成一串小液滴，这样便标识出了该粒子的路径；若将容器置于一个磁场中，还能知道粒子所带电荷的性质。 |
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When a child arrived late, I went through an elaborate ceremony of taking the watch from my pocket and staring at its face; far more dramatic than glancing at a wristwatch.
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孩子们迟到时，我如同检查一次精心准备的典礼，从口袋中拿出怀表，并盯着表盘看上一会儿；这比看手表舒服多了。 |
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When a child becomes familiar and interested in the concept of the “future” such as “wait a minute” or “tomorrow”, parents can gradually introduce the days of the week to have him become familiar with the concept of time.
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当孩子对「未来」感到兴趣时，「等一下」或「明天」可能已经不敷使用了，父母可开始用星期几等专有名词来让孩子熟悉时间长短。 |
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When a child becomes interested in distant space and objects, parents can help satisfy this curiosity by introducing occurrences in daily life such as sunsets and sunrises as well as discussing the concept of direction such as north, south, east and west.
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当孩子对远处的空间概念发生兴趣时，父母可藉由日常生活的现象机会教育，如藉由太阳的升起落下和孩子讨论东、西等方向。 |
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When a child behaves strangely, try and get to the root of his feelings by being observant, attentive and proactive.
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孩子出现异常行为时，应试著去了解其内心世界的初始想法，除需平日用心观察之外，更要主动询问、耐心顷听。 |
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When a child is born, the women of the family must carry it three times around its parents' hearth and then examine it for birthmarks.
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孩子出生后，这家的女人们必须抱着他，绕父母的壁炉转三圈，然后检查他的胎记。 |
