The selection here is very large, it may be difficult to choose.
這里有很多式樣可以選,可能很難決定。
No man learns but by pain or shame.
不經痛苦羞辱,難以取得教訓。
The currents of air that the walls of the ship direct upwards, as well as in the line of its course, are enough to give the great bird with its immense wings sufficient sustenance and progress.