However one method could be to place some form of contact pads on the outside of the skin, which however gives additional problems in the form of fitting, risk of infections, reliability and so on.
拍照语音搜题,微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】The children put on ___ one-act play last Saturday. ___ play amused everyone of us.