There are multiple challenges for the replication: Variationofspeed may be significant, and the style of handwriting varies a lot.
有用于复制多重挑战：速度的变化可能是显著，和手写的风格各异很多。
2
His autobiography, “Chasing the Wind”, acknowledged his dependence on “partnering” every variationof air and weather to speed his unsteered balloons and his sails.
他在自传---《追风》中承认，只能任着气流和天气的每份变化来加速他那不受控制的气球和帆船。
3
"I could hardly follow his fast speed and variationof rhythm, " said the dejected 25-year-old.