yù / dào / è / liè / tiān / qì / shí / zhèng / jià / shǐ / bì / xū / xùn / sù / jué / dìng / shì / fǒu / gǎi / biàn / háng / xiàn

遇到恶劣天气时，正驾驶必须迅速决定是否改变航线。

In bad weather, the pilot in command must quickly decide whether to change the flight route.