从古到今,洗衣服都是一项难于逃避的家务劳动,而在洗衣机出现以前,对许多人而言,它并不像田园诗描绘的那样充满乐趣。手搓、棒击、冲刷、甩打……这些不断重复的简单的体力劳动,留给人的感受常常是:辛苦劳累。1858年,一个叫汉密尔顿·史密斯的美国人在宾夕法尼亚州匹茨堡制成了世界上第一台手动洗衣机。该洗 Since ancient times, washing clothes is a hard-to-avoid domestic work, and for many people before the washing machine appeared, it is not as fun as idyllic portrayal. Hand rub, stick hit, wash, beat ... ... These repeated simple manual labor, leaving people’s feelings are often: hard work. In 1858, an American named Hamilton Smith made the world’s first manual washing machine in Pittsburgh, Pa. The wash