Spectrodensitometer
光密度计
🗣️ 情景例句
Go by the book.
照章办事。
The menu is dirty, Would you bring me a clean one, please?
这菜单是脏的，请你拿个干净的给我。
Even men who can hardly drive a nail in straight are supposed to be born electricians, carpenters, plumbers and mechanics.
甚至那些连一枚钉子都钉不直的男人都被认为是天生的电工、木匠、水管工和机械师。