1. Red letter day 值得紀念的、喜慶的日子
13th June is a red letter day for me because I won my first dancing contest on that day.
2. Catch sb red-handed 在做壞事時被發現
The students were trying to cheat in the exam, but the teacher caught them red-handed.
3. Red herring 用以轉移注意力的事
The sudden news of these two artists dating is a red herring to divert the public attention from the corruption of a principal official.
4. Whitewash 掩飾真相
The songwriter tries to whitewash his behavior of plagiarizing others music.
5. White elephant 昂貴而無用的東西
To me, this car is a white elephant as I do not have a driving license.
6. White sale 大減價 (針對指白色織物例如毛巾、床單、被子)
Shall we go to the supermarket for more towels during the white sale?