重點講解：
1. a strand of/strands of
（頭發、電線或紗線等的）股，縷；
eg. She tried to blow a gray strand of hair from her eyes.
她竭力想把眼前的一縷白發吹開。
eg. 'The fact that you can take strands of thread and basically make something out of it, that's awesome I think,' he said.
“你可以將一股股的線織成一件東西，我覺得這太棒了”，他說。
2. in contrast to
與…截然不同；與…對比鮮明；
eg. His public statements have always been in marked contrast to those of his son.
他和他兒子在公開場合的言論總是截然不同。
eg. That is in stark contrast to the situation during the 1970 oil crisis.
那和1970年石油危機時的情形完全不同。
3. how come
（用于因為驚訝而詢問）怎么會這樣呢，為什么；
eg. 'They don't say a single word to each other.'—'How come?'
“他們相互之間一句話都不說。”——“怎么會這樣呢？”
eg. How come he hasn't been able to be as good this year?
為什么他今年表現不及往常呢？