container中等

Sixty toddlers were each [introduced] to an adult tester holding a plastic container.

六十名幼儿被逐一{{14}}给一位手拿塑料容器的成人测试员。

The tester would ask, “What’s in here?” before looking into the container, smiling, and exclaiming, “Wow!”

测试员会先问：“这里面有什么？”然后往容器里看，面带微笑地惊呼：“哇！”

Half of them found a toy; the other half [discovered] the container was empty — and realized the tester had [fooled] them.

其中一半找到了一个玩具；另一半则{{16}}容器是空的——并意识到测试员{{17}}了他们。