Pulsafeeder
脉动电源, 脉动供料机
🗣️ 情景例句
She tore up all the letters he had sent her.
她把他写来的信全撕了。
She was the more promising worker of the two.
她是两个工人中比较有前途的一个。
Sally is looking at a big ship.
莎莉正在观看一艘大船。