走到外面，我注意到之前看不见的春天微妙迹象——树上萌芽的叶子，鸟儿的鸣叫，空气中淡淡的花香。
Stepping outside, I noticed the subtle signs of spring that had been invisible to me before-the budding leaves on the trees, the chirping of birds, and the faint scent of blossoms in the air.
