Wachusett Reservoir, MA., U.S. - 11 [1,920 X 1,080]
Wachusett Reservoir, MA., U.S. -
12 [1,920 X 1,080]
Georg Simon Ohm (1789-1854)
Ohm shows "You can't be perfect if you can't stop or wait."
¸ðµÎ ¼·Î ÇູÇϽñæ.