Definition
To publicly declare one's opinions, beliefs, or intentions, making them clear and unchangeable.
開宗明義
In the debate, he decided to nail his colours to the mast, supporting the reforms.
在辯論中，他決定公開表明立場，支持改革。
She nailed her colours to the mast by giving a public speech, making her commitment to environmental protection clear.
她通過公開演講表明立場，明確表達了對環境保護的承諾。
When the company faced a crisis, the manager decided to nail his colours to the mast with their approach.
當公司面臨危機時，經理決定公開表明立場，堅持他們的處理方式。