They're packed with all sorts of fun experiments which teach specific science concepts.

里面有各种有趣的试验，教授特定的科学概念。

In addition, she could have used some more advanced vocabulary in certain questions to give more specific concepts and make clear ideas.

另外，在某些问题上，她可以使用一些更高级的词汇，给出更具体的概念，使思路更清晰。

" It basically indicates that we have what we need to communicate a broad range of expression, or even very specific concepts, " Ms. Daniel said.

“这基本上表明，在表达一系列情感，甚至是表达非常具体的概念时，我们拥有我们所需要的东西，”丹尼尔说。