on/from the sidelines = មិនចូលរួម, មិនពាក់ព័ន្ធ, នៅខាងក្រៅ
without taking part, without getting involved; watching somethings but not actually involved in it; stand on the sidelines
Example:
She has chosen to remain on the sidelines of public debate.
They have just stood on the sidelines and let the situation get worse.
Minister told reporters on the sidelines of a meeting of G-20 that ...
