"خلال الجهود المتواصلة والجماعية" - Translation from Arabic to English

• through sustained and collective efforts

Those significant advances, which had been achieved through sustained and collective efforts, must be maintained and strengthened.
وهذا التقدم الكبير المحرز من خلال الجهود المتواصلة والجماعية لا بد أن يستمر وأن يجري تدعيمه.