kernel fruit

例句：

1. 1. The kernel of the problem is that we need to find a solution.
   问题的核心是我们需要找到一个解决方案。
2. 2. She ate the kernels of the corn she had planted in her garden.
   她吃了她花园里种的玉米的籽粒。
3. 3.The kernel of the conversation was about the importance of education.
   谈话的核心是关于教育的重要性。