Let him carry with him also, some card or book, describing the country where he travelleth; which will be a good key to his inquiry.
旅行者也应随身携带介绍目的地的地图或书籍，这会成为探索当地的一把好钥匙。
— Francis Bacon · Essays · Of Travel —
键盘照着敲一遍，更容易记住。
不用找输入框，直接敲键盘。