bulb

n. /bʌlb/ A2

灯泡；电灯泡

A glass object producing light when electricity passes through.

仙境例句

In years to come, her sister thought, a little glass bulb would light a room without any candle.

姐姐想，将来会有一个小小的玻璃灯泡，不用蜡烛就能把屋子照亮。