在现实中，尽管盖茨的头发总是乱糟糟的，又长着张娃娃脸，不修边幅，他可是个老练的生意人，每走一步都成竹在胸。
In reality, Gates is a smooth operator who, despite his uncombed hair, baby face and disheveled appearance, knew exactly what he was doing every step of the way.
在很多案例中，在最后的呼吸中，有氧储备在病人的血液和肺中，我们可以利用那些氧储备而只做胸外按压。
In many cases, there is a reserve of oxygen left in the patient's blood and lungs, from the last breath, and we can take advantage of that oxygen reserve and just do chest compressions.
大约在1亿年前，那个独一无二的神经系统装置使得斑胸草雀通过唱歌从鸡的家系中脱离出来成为草雀这一旁支。
The unique neurobiological apparatus that enables the finch to sing developed after the lineage of the zebra finch and chicken diverged, about 100 million years ago.
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