exclamatory sentence       
noun [ C ]  language specialized uk/ɪksˌklæm.ə.tər.i ˈsen.təns/ us/eksˌklæm.ə.tɔːr.i ˈsen.təns/
 感叹句,惊叹句
a sentence containing an exclamation or strong emphasis
  "Oh, no!" and "What a large dog!" are exclamatory sentences. “哦,不!”和“好大一条狗!”都是感叹句。