have动词原形是现在完成时。
例句
Prices have risen alarmingly.
价格涨得吓人。
Building costs have nosedived.
建筑费用猛跌下来。
Building costs have nosedived.
建筑费用猛跌下来。
Prices have fallen dramatically.
价格突然暴跌。
They have failed lamentably.
他们的失败让人惋惜。
Attitudes have changed radically.
态度发生了根本的变化。
