定義 / Definition
[noun]
・a long, hollow object that is used especially to control the flow of a liquid or gas.
・a thing in the form of or resembling a tube.
・the underground railway system in London.
— その他 例文 —
Use this tube to pour the liquid.
このチューブを使用して液体を注ぎます
The pollen tube grows from the stigma and transports sperms cells to the ovule.
花粉管が柱頭のところから伸び、胚珠に精細胞を運ぶ