Spectrodensitometer
光密度计
🗣️ 情景例句
Easy now. Easy does it. That's it.
放轻 ，不要紧 ，对了。
Every tide hath ist ebb.
潮涨必有潮落时。
where wild rabbits are not generally regarded as a pest but as a sport and a useful food supply,
野兔在法国一般不被当作有害动物，而被视为打猎取乐的玩物和有用的食物来源。