by the time - happened previously, untill - continues up to that point and then stops, while - happens at the same time as another action, during - happens at some point  in a period of time, as soon as - happens immedeately after something else has happened,

بواسطة

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

استعادة الحفظ التلقائي: ؟