A. yes , but only if they were undetectable .

A.会，只要不被查出来。

Only small whimpers and undetectable sound .

只有小呜咽和检测不到声音。

In search of almost undetectable subatomic particles .

以寻找几乎无法探测的次原子微粒。

Almost undetectable with even the most delicate instruments .

即使最精密的仪器都几乎无法察觉的。

Exactly what could cause memory problems among people with af is not fully understood , but people with af may have a series of tiny , undetectable strokes that could result in the mental impairment .

能够导致心房纤颤患者精神障碍的确切原因不明确，但是患有心房纤颤的人可能有一些小的，不易觉察的中风能够导致精神障碍。