新学年之初，师生们都很高兴。（并列主语）
Both students and teachers are very happy at the beginning of the new school year .
我父母早上七点上班，晚上八点回家。（一个并列主语和一个并列谓语）
My father and mother go to work at seven in the morning and come back home at eight in the evening .
并列主语