The word 飞机 is formed by combining the character 飞, meaning "to fly", with 机, meaning "machine"; together, they create a literal compound meaning "flying machine", which specifically denotes an airplane.
我喜欢坐飞机。
Wǒ xǐhuān zuò fēijī.
I like to take planes.
坐飞机旅行很方便。
Zuò fēijī lǚxíng hěn fāngbiàn.
Traveling by plane is very convenient.
明天我要坐飞机去上海。
Míngtiān wǒ yào zuò fēijī qù Shànghǎi.
Tomorrow I will take a plane to Shanghai.
因为天气不好，飞机晚点了。
Yīnwèi tiānqì bù hǎo, fēijī wǎndiǎn le.
Because the weather is bad, the plane is delayed.
乘坐国际航班飞机需要提前办理登机手续。
Chéngzuò guójì hángbān fēijī xūyào tíqián bànlǐ dēngjī shǒuxù.
Taking an international flight requires checking in early.
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