Nicad
镍镉蓄电池
🗣️ 情景例句
Good-bye. And hope to see you soon.
再见。希望很快再见到你们。
A chain is no stronger than its weakest link.
链条的坚固程度取决于它最薄弱的环节。
Six men have been trapped in a mine for seventeen hours.
6个人被困在矿井里已有17个小时了。