bulb

US /bʌlb/
UK /bʌlb/
"bulb" picture
1.

球茎, 鳞茎

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.
秋天种下郁金香球茎，春天就能开花。
•
Onions grow from bulbs.
洋葱从鳞茎中生长。
:
cormtuber
2.

灯泡

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.
灯里的灯泡需要更换。
•
He screwed the new bulb into the socket.
他把新灯泡拧进了插座。
:
lightbulblamp
3.

球部, 球状物

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.
温度计尖端有一个小球。
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The liquid is drawn into the pipette's bulb.
液体被吸入移液管的球部。
:
globespherechamber
:
light bulblight bulb moment