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 about next Saturday?
下周六如何？
Don't make any mistakes.
别出差错。
The modern weather models work with a grid of points of the order of sixty miles apart,
现代气象模型以一个坐标图来显示，图中每个点大约是间隔60英里。