It was an internal signal, probably bleeding over from another line.

这是一个内部信号，可能是从另一条线路泄漏出来的。

These sensors pick up on these internal signals sourced deep within the mouth cavity, right from the surface of the skin.

这些传感器接收来自口腔深处、直接来自皮肤表面的内部信号。

Bedroom musical play could be the first time a girl tunes in to her own internal signals, self-regulates it, and learns to say " Yes! " as well as, " Nope, not today."

卧室音乐剧可能是一个女孩第一次收听自己的内部信号，自我调节它，并学会说 “是的！”以及 “不，不是今天”。