Backdoor output
[计] 秘密输出, 非法途径输出
🧩 词语组成解析
a. 秘密的
🗣️ 情景例句
How's that?
怎么是这样？
How did you get so dirty?
你为什么弄得这么脏？
but each year, the dogs are still sent out into the snow whenever a traveller is in difficulty.
但每年还要派狗到雪山地里去帮助那些遇到困难的旅游者，