1 make a formal，usu. public，promise that you will do sth 2a serious premise or agreement, esp. one made publicly or officially
A.plague
B.efficiency
C.pledge
D.fiction
E.strip
正确答案是C
1 make a formal，usu. public，promise that you will do sth 2a serious premise or agreement, esp. one made publicly or officially
A.plague
B.efficiency
C.pledge
D.fiction
E.strip
正确答案是C