They're here. 他们在这儿。They're interested in the film. 他们对这部电影很感兴趣。We're teachers. 我们是老师。We're hard-working. 我们工作很努力。He's a student. 他是一个学生。He's kind to us. 他对我们很好。She's crying. 她在哭。 She's sad. 她很难过。