also watch-word, c. 1400, "password," from watch (n.) in the military sense of "period of standing guard duty" + word (n.). In the sense of "motto, slogan" it dates from 1738.
权威例句
1. Quality is our watchword.
质量是我们的口号。
2. We gave the watchword, and the sentinel let us pass.
我们说出口令, 哨兵就把我们放过去了.
3. Today the watchword is " Learn through playing ".