Tone system
un. 显影系统；显影方式\\n
🧩 词语组成解析
tone
[təun]
n. [语]声调，语调;[画]色调，色泽，明暗;[乐]乐音，全音，全音程;[医]（正常的）健康状态;
vt. 使更健壮;定调;使变调子;[摄影术]给…上色;
vi. 带有某种腔调;呈现某种色彩;（颜色）调和（与 with 连用）;
🗣️ 情景例句
Whatever you do, though, Ellen.
尽管如此，爱伦，无论你怎么决定。
What a disappointment.
真是失望透顶。
By the way, I came into this classroom last Saturday morning, and it was not as clean as usual.
顺便提一句，上星期六上午我来到这个教室时