درس 3: The Value of Knowledge
زبان انگلیسی (1)
دهم
متوسطه دوم نظری
علوم ریاضی
درسنامه آموزشی این مبحث
If you don't use your hands and legs for some time, they become weak; when you start using them again, they slowly become strong. "Strong" means .................. .