Inner voice is the voice mouth of the subconscious mind.the subconscious mind is always acting as a secondary reflector of thoughts and ideas in the body.
心灵是诉说潜意识的嘴，潜意识一直是思想和情感的反映。
2
Mine mouth power plant can directly convert primary energy source into secondary energy, reducing coal loss in the transportation and environmental pollution, so it has tremendous advantages.
坑口电站可以直接将一次能源转化为二次能源，减少输煤损失和环境污染，具有很大的优势。
3
A good example of a secondary gesture might be a person putting his hand up to his mouth to cover a cough.