sotto voce
adj, adv (Italian fml or joc 意, 文或谑) in a low voice, so as not to be heard by everyone 轻声(的); 低声(的)
a sotto voce remark 轻声说出的话
The defendant leant forward and spoke to his barrister, sotto voce. 被告探身跟讼务律师嘀咕了几句.
First the electroencephalograph (which is simply a device for recording the electrical activity of the brain by attaching electrodes to the scalp) shows that while there is a change in the pattern of activity during sleep,