v decrease in size, extent, or range
v make smaller
v wear off or die down
vt. 减少, 缩小, 减轻
vi. 变小
1. We can lessen the impact of pollution by using public transport.
我们可以通过使用公共交通来减少污染的影响。
2. She took deep breaths to lessen her anxiety before the exam.
她在考试前深呼吸以减轻焦虑。
3. Eating less sugar can help lessen the risk of health problems.
少吃糖有助于降低健康问题的风险。