Prolusion
n. 序言, 绪言, 序幕, 序乐, 开场白, 预演
🗣️ 情景例句
His house was always neat.
他家经常都是干净的。
A man may lead a horse to the water, but he cannot make him drink.
牵马到河易，强马饮水难。
That's international practice. We can't break it.
这是国际惯例，我们不能违背。