The researchers then tested the dogs' ability to distinguish between human facial expressions by showing them the other half of the person's face on images totally different from the ones used in training.

研究人员随后给狗狗展示与训练中完全不同的人的另一半脸，来测试它们区分人类面部表情的能力。

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On the face of it, this seems unlikely, because the characteristics that have been engineered into them are ones designed to make them into better food, rather than lean, mean breeding machines.

表面看来，这似乎不太可能，因为基因工程赋予它们的特征是为了使它们成为更好的食物，而不是竞争力强的高效繁殖机器。

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Then the others begin work on ones new head and face, which require the skills of a sculptor.

然后，其他人会在他新的头面上下功夫，这需要雕刻家的技艺。

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All their attention is on my face, and their pockets, especially the ones on their lower body, are out of the frame.

NEWYORKER: A Pickpocket��s Tale

Some languages, even robust ones, face an obvious threat in the shape of a political power bent on imposing a majority tongue.

ECONOMIST: Endangered languages

Then there are the ministers who, by definition strangers to the seamier side of life, find themselves on inspection visits, face-to-face with scary inmates either hopped-up on illegal drugs, or zombified by prescribed ones.

BBC: A Point of View: Prisons don't work