scatheless

例句：

1. 1. The dog was scatheless when it jumped over the fence.
   狗跳过篱笆时是无伤的。
2. 2.The chemicals used in the factory are scatheless.
   工厂里使用的化学品是无害的。
3. 3. The scientist's experiments were scatheless, as they did not cause any harm to the animals.
   科学家的实验是无伤的，因为它们没有对动物造成伤害。