inaudibly

She listened. The window creaked - at first almost inaudibly, then louder.

她静静地听着,窗子在格格作响――开始声音很小, 后来越来越大.

辞典例句

In whichever language, he speaks slowly and almost inaudibly.

无论说哪种语言, 波伽利的语速都不快,而且几乎听不见.

互联网

She spoke inaudibly low.

她说话的声音低得无法听到.

互联网