Mother and son lost contact when Nicholas was in his early twenties. 尼古拉斯20岁出头的时候母子就失去了联系。
这里的mother and son(母子)前面没有用冠词,好像原来见过,father and son(父子)也不用冠词的,这是一种习惯吗?如果是 mother and daughter(母女)、brother and sister(兄妹)等呢?也一样吗?还有 teacher and student(师生)等等。
刘老师:
关于可数名词mother和son之前,不用冠词的问题,可以说:这是一种省略现象。当两个词义有关联的单数可数名词用在一起时,为了表达上的简练,可以省缺冠词。这个现象应该看作一种语言规律,而不是个例。这不仅限于mother and son(母子),可以延伸到更广的词语范围。例如:夫妻,父子,母女,上下,左右,头尾,早晚,等等。现举例如下:
husband and wife 夫妇
father and son 父子
mother and daughter 母女
master and servant 主仆
from door to door 挨家挨户
from morning till night 从早到晚
from beginning to end 自始至终
Husband and wife were similarly successful in their chosen careers. 夫妇俩在各自所选择的事业上都很成功。
Father and son work in the same company. 爷儿俩在同一个公司工作。
They are husband and wife but not brother and sister. 他们是夫妻,不是兄妹。
The relation between teacher and student is not what it used to be. 老师和学生之间的关系已不是以前那样了。
以上例子说明,你说的mother and daughter(母女)、brother and sister(兄妹)、teacher and student(师生)等这些在意义上有关联的词语,省略冠词是完全可以的。