Edison and his men were watching his light all the night. The light continued to burn for40 hours before it went out.
英
美
- 爱迪生和他的同伴整晚上在观察他的灯,灯连续亮了40个小时才熄灭。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries