Posiode
正温度系数热敏电阻
🗣️ 情景例句
He went to Canada on business.
他因公赴加拿大。
Judge not a book by its cover.
评定一本书，不能凭封面。
She put away her compact and smiled kindly.
她放好了粉盒，慈祥地微笑着。