I plucked up courage at once, crossed the threshold, and walked right up to the man where he stood, propped on his crutch, talking to a customer.
我立刻鼓起勇气，跨过门槛，径直走向那个拄着拐杖、正同顾客交谈的人。
— Robert Louis Stevenson · Treasure Island (1883) —
键盘照着敲一遍，更容易记住。
不用找输入框，直接敲键盘。