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
Band Six.
六级。
Whatever man has done man may do.
天下无难事。
Yes, I see. How can they get rid of waste water in this way? What a terrible colour the sea is now! It looks as if our class won't be able to bathe at all.
是的，我看见了。他们怎么能这样排放废水呢？海水的颜色多么可怕呀！看来我们班同学根本不能在这里游泳。