Deep below Peitou, subterranean water flowed through, steadily getting warmer and warmer. Then, also due in part to the pressure and swelling of the earth above, the water gurgled forth.
深處北投地下的蓄水層，經過源源地熱不斷地加溫，因為地層壓力及受熱膨脹作用，汩汩冒出。