repercussion
/ˌriːpəˈkʌʃən/noun
1
- （一般作repercussions）an unintended consequence occurring some time after an event or action, especially an unwelcome one（尤指不受欢迎的）后果; 影响：
the move would have grave repercussions for the entire region.
这一举措会给整个地区带来严重的后果。
2
- archaic the recoil of something after impact〈古〉弹回, 反冲。
3
- archaic an echo or reverberation〈古〉回响, 回声。
派生词
repercussive
adjective词源
late Middle English （as a medical term meaning 'repressing of infection'）： from Old French, or from Latin repercussio（n-）, from repercutere 'cause to rebound, push back', from re- 'back, again' + percutere 'to strike'. The early sense 'driving back, rebounding' （mid 16th cent.） gave rise later to 'blow given in return', hence sense 1 （early 20th cent.）.