1. On most keyboards, the way to type double quotation marks is usually to hold down the "Shift" key and then press the quotation mark key next to the Enter key. This allows you to type double quotes in the English input method.
2. In the Mac operating system, you can type double quotation marks by pressing the "Control" key and the quotation mark key.
3. On the mobile phone, you usually need to find the symbols or punctuation marks in the keyboard interface and select double quotation marks for input. In addition, some input methods also provide quick input methods for special symbols, such as sogou input method or Baidu input method. Special symbols such as double quotation marks can be inserted quickly through the toolbar or symbol encyclopedia function of input method.