“Got it, ” said Hagrid at last, holding up a tiny golden key.

“找到了。”海格终于说，举起一把小金钥匙。

They're guarding all the doors and holding all the keys.

他们把守每个门户 掌握每个关键 就是说。

So, this is better than holding down the K or J keys, for example.

因此，这比按住 K 或 J 键更好。

Mother told me to take her car and go. Shawn turned to me. " You'll be needing these, " he said, holding up Mother's keys.

母亲叫我赶快开她的车离开。肖恩转向我。" 你开车需要这个。" 他说着，举起母亲的车钥匙。

And of course the volunteers themselves are carefully chosen to be impartial experts who give advice without holding the keys to the castle-an idiom about possessing information which gives access to power.

当然这些志愿者本身也是仔细挑选过的中立的专家，他们只给建议而并没有掌握城堡的钥匙——这个习语指的是拥有通往权力的信息。

And of course the volunteers themselves are carefully chosen to be impartial experts who give advice without holding the keys to the castle – an idiom about possessing information which gives access to power.

当然，志愿者本身是经过精心挑选的公正专家，他们不会了解到某些信息——这个习语是指掌握信息，让拥有者获得权力。