But as early as 1803, an ingenious Maryland farmer, Thomas Moore, had been on the right track.
But as early as 1803, an ingenious Maryland farmer, Thomas Moore, had been on the right track.
但早在1803年，一位有发明天才的马里兰农场主，托马斯莫尔，找到了正确方法。
But as early as 1803, an ingenious Maryland farmer, Thomas Moore, had been on the right track.
但早在1803年，一位有发明天才的马里兰农场主，托马斯莫尔，找到了正确方法。