تلاش همه جانبه ( تلاش مصرانه )A concerted effort or attempt is determined and serious: There has been a concerted campaign against the proposals. He's making a concerted effort to improve his appearance. SMART Vocabulary: related words and phrases , تلاش مصرانهو جد و با عزم قویتلاش مصرانهتلاش همه جانبه+ عکس و لینک
