grin and bear it
/ˌɡrɪn ən ˈbeər ɪt/idiom
to accept an unpleasant situation without complaining because you cannot change it
терпеть, стиснув зубы
Русский аналог: «стиснуть зубы и терпеть»
Часто с have to: There’s nothing we can do — we’ll just have to grin and bear it.
“The flight was awful, but we had to grin and bear it.”
“There’s nothing you can do — just grin and bear it.”
“She hated the job but grinned and bore it.”