With anti-rheumatic drugs or antibiotics are ineffective treatmentclass medicine.
用抗风湿药或抗生素类药治疗无效。
2
If you are creating a mutable class m, you should be prepared to write a lot more documentation about the treatment of references to m than if m were immutable.
On the Titanic, the rules concerning gender, class and the gentle treatment of children - in other words, good manners - had a chance to assert themselves.