a
bun
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1
丰富, 大量
a large quantity or amount of something
- The garden was filled with an abundance of blooming flowers in the spring.
春天，花园里开满了大量的花朵。
- The region is known for its abundance of natural resources.
该地区以其自然资源的丰富而闻名。
- Her generosity stemmed from an abundance of kindness and empathy.
她的慷慨源于善良和同理心的丰富。
- The harvest yielded an abundance of fresh fruits and vegetables.
收获带来了丰富的新鲜水果和蔬菜。
- The festival offered an abundance of activities for visitors of all ages.
节日为所有年龄段的游客提供了丰富的活动。
反义词：
2
(in chemistry) the relative amount of an element present in the Earth's crust, expressed as a percentage of total crustal mass or in parts per million
- The abundance of oxygen in the Earth's crust is around 46%.
- Scientists measured the abundance of silicon in various rock samples.
- The study focused on the abundance of trace metals in soil.
- The abundance of carbonates indicates past geological activity.
- Data on the abundance of elements help geologists map mineral deposits.
3
(in physics) the proportion of atoms of a specific isotope of an element relative to the total number of atoms of all its isotopes
- The abundance of carbon-12 in nature is much higher than that of carbon-13.
- Scientists measured the abundance of uranium-235 in the sample to determine its suitability for reactor fuel.
- The abundance of oxygen-18 compared to oxygen-16 is used in climate studies.
- Neon has three stable isotopes, but their natural abundances vary widely.
- Measuring the abundance of hydrogen isotopes helps in tracing water sources.