bulb 英 [bʌlb] 电灯泡
双语例句:
An efficient bulb may lighten the load of power stations
一个节能灯泡也许就能减轻发电站的负荷。
bulb 英 [bʌlb] 电灯泡
双语例句:
An efficient bulb may lighten the load of power stations
一个节能灯泡也许就能减轻发电站的负荷。
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