یک اصطلاحه در مورد چیزی به کار میرود که نشانه ای از خطر یا عدم موفقیت احتمالی باشد.
the boss invited Sarah to dinner but after that he fired her. it happened the same to me. so dinner invitation is considered the canary in the ( coal ) mine
the boss invited Sarah to dinner but after that he fired her. it happened the same to me. so dinner invitation is considered the canary in the ( coal ) mine