Placed
v. 放置（place的过去分词形式）
🗣️ 情景例句
Remember my apple pie on Thanksgiving?
记得在感恩节我做的苹果派吗？
Why are you crying?
你为什么哭？
The problem now facing humanity is: What is going to be done with all this knowledge?
用这些知识去做什么？