Backsiphonage
反虹吸
🗣️ 情景例句
It was so exciting to meet her again after so many years.
多年以后和她再相遇是多么让人激动啊!
What's your trouble?
你有什么不舒服？
knowing that others will carry on what I can no longer do,
明白了有人会继续我的未竟事业，