kernel [ˈkɜ:nl]

以下由轻松背单词网站提供

n.(果实的)核，仁；(问题)的中心，核心

the part of a nut that is inside the shell and can be eaten

The kernel of his problem is lack of money. 他的问题的核心是缺钱。
The nutshell includes the kernel. 果壳裹住果仁。