adj.无害的,不致伤的;没有受到损失或免于法律责任的;
例句:
It's a new drug, quite harmless.
高级针剂, 相当无害的.
They killed the harmless old man in cold blood.
他们残忍地杀害了那位无辜老人.
A harmless traveller was led to the same spot.
一个并无所求的旅行者也到了这地方.