But, after a while they stopped jumping, Meyerhof found that the legs were full of lactic acid — or, more accurately, lactate, which is lactic acid minus a proton.

但是，在它们停止跳跃一会儿后，迈尔霍夫发现青蛙腿中充满了乳酸，或者更准确的说是乳酸盐，即少了一个质子的乳酸。