"We can rule out that the dogs simply distinguish between the pictures based on a simple cue, such as the sight of teeth," said study author Corsin Muller.
研究作者科辛·穆勒说：“我们可以排除狗只是根据简单的线索来区分图片，比如看到牙齿。”
2
The rationale for this rule is that you cannot distinguish an inherited work item from a direct one at first sight.
此规则的基本原理是您不能立刻从直接工作项中区分继承的工作项。
3
It was a dreadful sight they saw, a wordless condemnation of their rule.