Enormous changes in materials and techniques of construction within the last few generations have made it possible to enclose space with much greater ease and speed and with a minimum of material.
The vision acquired an especially keen charm that made me race with all speed toward my lone gratification.
这景象具有一种特别强烈的魅力，使我全速奔向我孤独的满足。
3
Nonruminants cannot extract much energy from the hard parts of a plant; however, this is more than made up for by the fast speed at which food passes through their guts.