build 和compile 和rebuild all 的区别？

fengyun11747-14

IAR 中make      compile        rebuild all 的区别？
 
IAR中make和compile 的原意如下：

make：Brings the current build configuration up to date by compiling, assembling, and linking only the files that have changed since the last build.
Compiles ：Compiles or assembles the currently selected file, files, or group. You can also select the editor window containing the file you want to compile. The Compile command is only enabled if every file in the selection is individually suitable for the command.
rebuild all ：Rebuilds and relinks all files in the current target.

麻烦能否解释一下？小弟先行谢过！！！