a person who works in a mine, extracting minerals, coal, or other valuable materials from the earth

矿工, 采矿者

people who are involved in commercial or industrial activities, such as buying, selling, or managing a company

商人, 商业人士

any destruction caused by the nature that results in a great amount of damage or the death of many, such as an earthquake, flood, etc.

自然灾害, 天灾

to be filled with more people or things than is comfortable, safe, or desirable

人满为患, 过度拥挤

the condition of lacking enough money or income to afford basic needs like food, clothing, etc.

贫穷

an educational institution at the highest level, where we can study for a degree or do research

大学, 高等院校

a building where people who did something illegal, such as stealing, murder, etc., are kept as a punishment

监狱

related to the study or characteristics of the Earth's surface, including its features, landscapes, and locations

地理的, 地形的

a hole or chamber formed underground naturally by rocks gradually breaking down over time

洞穴, 穴

an area of rock that is high above the ground with a very steep side, often at the edge of the sea

悬崖, cliffs

a naturally raised area of land that is higher than the land around it, often with a round shape

山丘, 小山

a very tall and large natural structure that looks like a huge hill with a pointed top that is often covered in snow

山, 高山

the salt water that covers most of the earth’s surface and surrounds its continents and islands

海

