mas/ˌemˈeɪ/名词(美国)马萨褚塞州(写地址时Massachusetts的缩写)文科硕士学位;文科硕士(Master of Arts的缩写)Julia Richards, MA文科硕士朱莉娅‧理查德兹/mɑː/名词母亲,妈妈What's wrong, Ma?怎么啦,妈妈?想跟读,去练习