Ljungberg was at the peak of his powers that year and was enjoying a real purple patch as Arsenal chased Double glory.
2
所有的能量和资源都来自太阳的想法引起了他的兴趣。
The idea that all energy and wealth comes from the sun really intrigued him.
3
他发现,声音回声衰减的时间长短取决于周围物质对声音原始能量的吸收。
He found that the length of time it takes a sound's echo to decay is determined by the absorption of the sound's original energy by surrounding material.