(as) plain as a pikestaff
US /əz pleɪn əz ə ˈpaɪk.stæf/
UK /əz pleɪn əz ə ˈpaɪk.stæf/

1.
واضح كالشمس, جليّ
very obvious and easy to understand
:
•
His guilt was as plain as a pikestaff.
ذنبه كان واضحًا كالشمس.
•
The instructions were as plain as a pikestaff, so I don't know why he made a mistake.
التعليمات كانت واضحة جدًا، لذا لا أعرف لماذا ارتكب خطأ.