when s__ comes ,the tress turn green and the flowers start to come out.
问题描述：
when s__ comes ,the tress turn green and the flowers start to come out.
答
spring 春天；春季
答
spring 春天
答
When spring comes,the tress turn green and the flowers start to come out.
春天来了,树叶绿了,花儿开了.
答
spring