guard cell
音標(biāo)發(fā)音
- 英式音標(biāo) [?ɡɑ?d ?sel]
- 美式音標(biāo) [?ɡɑ?rd ?sel]
- 英式發(fā)音
- 美式發(fā)音
基本解釋
- 植物的保衛(wèi)細(xì)胞（保衛(wèi)細(xì)胞組成環(huán)狀，構(gòu)成了葉子的氣孔，能控制氣流的進(jìn)出，阻止水分流失。）。
英英字典
- on a leaf, one of a pair of cells positioned around each stoma (= a small hole in the surface) that open it to release gases or close it to prevent water from being lost