Translation

• a big margin
• substantially

Examples

• 企业第一季度收益大幅增长。
  Corporate earnings in the first quarter improved sharply.
• 近年的遊客数量大幅增加。
  The number of tourists has increased greatly in recent years.
• 这意味着对利用能源、耗费资金和制造污染的空调的使用有了大幅增长。
  It means a huge increase in the use of air conditioning which uses energy, which costs money and creates pollution.
• 美国人快餐食物的消耗量在一九七七至一九九五年间大幅增长了三倍。
  In America, the consumption of fast-food has tripled between 1977 and 1995.