Maintain به انگلیسی
From Longman Dictionary
main‧tain /meɪnˈteɪn, mən-/ ●●● S2 W1 AWL verb
to make something continue in the same way or at the same standard as before
کاری کنیم که چیزی به همان روش یا همان استاندارد قبلی ادامه یابد
to make a level or rate of activity, movement etc stay the same
تا سطح یا میزان فعالیت، حرکت و غیره ثابت بماند
to strongly express your belief that something is true
قویاً باور تان را به اینکه چیزی درست است، بیان کنید
to keep a machine, building etc in good condition by checking and repairing it regularly
برای نگهداری یک ماشین، ساختمان و غیره با بررسی و تعمیر منظم آن
to provide someone with the things they need, such as money or food
برای فراهم کردن وسایل مورد نیاز کسی، مانند پول یا غذا
Example
Once learned, values must be maintained
King lives in Chicago but maintains an apartment in New York
Volkswagen has maintained close business ties with them for over 20 years
They’re finding it difficult to maintain such high interest rates
His role is to maintain the society’s fleet of vans, ready to respond in any emergency
