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imperceptible
01
不可察觉的, 无形的
impossible or hard to sense or understand
imperceptible
adj
perceptible
adj
percept
n
例子
In the quiet of the night, the dim rustling of leaves became almost imperceptible.
There was a subtle change in her demeanor, almost imperceptible to those who didn't know her well.
The temperature increased infinitesimally, almost imperceptible to the residents.
