糖类以多种形式和通过多种机制，对生物体起到保护和防卫作用。
In varieties of forms and through different mechanisms, carbohydrates offer organisms protection and defense.
我们得有验证、技术保护、和远程防卫—正好我们现在就在做这些。
We need authentication, better tech protection and remote defense - we are developing all of these now.
这张图片，从澳大利亚海关和边境防卫部门挑选出来，显示了从一个乘客那里缴获的受保护蛇的X - ray照片。
This image, culled from the Australian Customs and Border Protection Service, shows an X-ray of protected snakes seized from a passenger.
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