Untraceable
a. 难追踪的, 难以发现的, 难以描绘的, 难以摹写的
🗣️ 情景例句
How are you doing, Richard?
现在怎么样， Richard？
What are you talking about?
你说什么？
It must have been about two in the morning when I returned home.
我回到家时，肯定已是凌晨两点左右了。