新概念英語2冊43課第一句話.
In 1929,three years after his flight over the North Pole,the American explorer,
R.E.Byrd,successfully flew over the South Pole for the first time.
我有倆個問題：
1.successfully flew over the South Pole for the first time的意思是他第一次穿越南極,并且穿越成功了.還是說他穿越了好幾次,這是第一次成功.無論這是哪一種意思,請幫我寫出另一種意思做對比.
2.three years after his flight over the North Pole,這里的after為什么要放中間,讀起來怪怪的,到底是說three years after 還是說after his flight over the North Pole,請幫我分析下這小部分句子.