1·By the time we had gone seven or eight hundred miles up the river, I had learned to be a tolerably plucky up-stream steersman, in daylight, and before we reached st.
当我船向上游行驶了七八百海里的时候，我已经在白天学习了如何当一个颇为大胆的逆流舵手。
2·A plucky one in seven said they embarked on adventures as often as possible, but one in four admitted they never try anything exciting.
七分之一的人大胆表明自己已经尽可能地参加冒险活动，四分之一的人承认他们从未尝试过任何刺激的事情。