Backdoor
a. 秘密的
✅ 同义词
🗣️ 情景例句
Have you had dinner yet?
你吃晚饭了吗？
In regard to your request, no decision has been made.
关于你的请求还没有做出决定。
It's supposed to start at 6:30 sharp, but I doubt it will.
应该是六点半整的，但是我觉得够呛。