She stepped into the room and sat down in a sofa. 她走进屋子在沙发上坐下。
skating n. 溜冰
The girls are skating and the boys are watching. 这些女孩在溜冰，而这些男孩在观看。
skill n. 技能，技巧
Reading and writing are different skills. 阅读和写作是不同的技能。
smell v. 嗅，闻到
Can you smell something burning? 你有没有闻到什么东西烧焦了？
同近义词
smoke n. 烟，烟雾
The air was thick with cigarette smoke. 空气里弥漫着浓浓的烟味。
