WHAT IS THE MEANING OF "TWO STEPS FORWARD AND ONE STEP BACK&#3...

6. - File thứ 1: De va dap an thi thu lan 2, Anh 6. - File thứ 1: De va dap an thi thu lan 2, Anh
Tiếng Anh File thứ 1: De va dap an thi thu lan 2, Anh
6. What is the meaning of "two steps forward and one step back" ? A. Most inventions never work well. B. You have to go forward and to go backward. C. Progress is slow and difficult. 1 D. Sometimes the only way to fix a problem is to leave it alone.