it's not rocket science

意味

it is easy to understand or do

理解するのもやるのも簡単である.

例文

1. 1Changing a tyre looks scary, but it's not rocket science once someone shows you how.
2. 2It's not rocket science: water the plants twice a week and keep them near a window.
3. 3Just follow the recipe step by step – it's not rocket science, and the cake will be fine.
4. 4Why pay someone to set up your printer when it's not rocket science?
5. 5Tom thinks tax forms are too hard for him, but it's not rocket science if you read the notes.

文法

固定した節で、通常 it's not か it isn't の形で使う。rocket science は変えない。

似た意味の表現