Photion
充氣光電二極管
??? 情景例句
Good afternoon, Mr. Chen. Thank you very much.
下午好，陳先生。非常感謝。
How wide is this bridge?
這座橋有多寬？
This is a major achievement because, in relative terms, planets are very small and old not emit light.
這是一個重要的成就，因?yàn)橄鄬碚f，行星很小，而且也不發(fā)光。