This drug works by blocking a specific protein interaction that lets cancer cells instruct immune cells to ignore them.

这种药物作用是阻断特定蛋白质相互作用，让癌细胞指示免疫细胞忽略它们。

Something so cool about the bars is you have a visible indication, a nice visual indication, of how forces are at play because the bar bends in accordance with those forces.

这种酷地方就在于，你可以到一个明显指示，一个视觉指示，显示力是如何作用，因为杆是根据这些力来弯曲。

There is the education that can take place in zoos through signs, talks and presentations which directly communicate information to visitors about the animals they are seeing and their place in the world.

在动物园里，可以通过指示牌、对话和演示直接向游客传达关于他们所到动物以及它们在世界上栖息地等信息，从而达到教育作用。