地球
The noun 地球 (dìqiú) means 'Earth' or 'the globe,' combining 地 (ground/land) and 球 (ball/sphere). It is used in scientific, geographic, and everyday contexts when referring to the planet.
地球绕着太阳转一圈需要一年的时间。
Dìqiú rào zhe tàiyáng zhuǎn yī quān xūyào yī nián de shíjiān.
It takes one year for the Earth to orbit the Sun once.
保护地球的环境是每个人的责任。
Bǎohù dìqiú de huánjìng shì měi gè rén de zérèn.
Protecting the Earth's environment is everyone's responsibility.
从太空看地球,真的像一颗蓝色的球。
Cóng tàikōng kàn dìqiú, zhēn de xiàng yī kē lánsè de qiú.
Seen from space, the Earth really looks like a blue ball.