外延 wàiyán extension Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 和我们的行星一样,太阳也有一个向外延伸的磁场。 hé wǒmen de xíngxīng yīyàng, tàiyang yě yǒu yīge xiàngwài yánshēn de cíchǎng. Like our planet, the sun also has a magnetic field that extends outwards. Source: CCMatrix