tampering

名词 tampering:

1. the act of altering something secretly or improperly
   同义词：meddling

动词 tamper:

1. play around with or alter or falsify, usually secretively or dishonestly
   同义词：tamper, fiddle, monkey
2. intrude in other people's affairs or business; interfere unwantedly
   同义词：meddle, tamper

1. The records of the meeting had been tampered with.
   会议记录已被人擅自改动。
2. Someone has been tampering with the lock.
   有人乱动过这把锁。