bulb

US /bʌlb/
UK /bʌlb/
"bulb" picture
1.

球莖, 鱗莖

a rounded, swollen part of the stem of some plants, such as the onion or tulip, that stores food and from which a new plant grows

:
Plant the tulip bulb in the fall for spring blooms.
秋天種下鬱金香球莖,春天就能開花。
Onions grow from bulbs.
洋蔥從鱗莖中生長。
2.

燈泡

a glass globe containing a filament that glows when electricity is passed through it, used for lighting

:
The light bulb in the lamp needs to be replaced.
燈裡的燈泡需要更換。
He screwed the new bulb into the socket.
他把新燈泡擰進了插座。
3.

球部, 球狀物

a rounded part of a glass tube, such as the end of a thermometer or a pipette

:
The thermometer has a small bulb at its tip.
溫度計尖端有一個小
The liquid is drawn into the pipette's bulb.
液體被吸入移液管的球部