习惯用语be liable for1.对...应负责任be liable to (do sth.)1.易于(得病等); 有(做某事的)习惯或倾向2.有义务(做某事)be liable to (sth.)1.应受(处罚等); 应服从(法令等)2.易遭; 易犯(疾病)