What does " bulb " mean? Must it use with " light " ?
E.g. : light bulbs
- ?Lv 71 十年前最愛解答
1. almost round, thick, underground stern, sending roots downwards and leaves upwards, of such plants as the lily, onion, tulip.
2. sth like a bulb in shape, esp an electric lamp or swollen end of a glass tube, eg in a thermometer
Therefore, "bulb" can be used without "light"
For example, the bulb of a thermometer, or the bulb of an onion.資料來源： Oxford Dictionary