Backdoor
a. 秘密的
✅ 同义词
🗣️ 情景例句
with the question of whether I go back to work or not.
为我是否回去工作这个问题。
How did you recognize him?
你是如何认识他的？
He told me that he could not go to sleep one night because he heard a strange noise coming from the bar.
他告诉我有天夜里他怎么也睡不着，因为他听到酒吧里传来一阵奇怪的响声。