Meaning of cháng qī:
cháng qī
长期
Adjective
long term; long range (of a forecast)
Tāmen jìhuà jìnxíng chángqī hézuò.
他们计划进行长期合作。
They plan to engage in long-term cooperation.
Wǒ dǎsuàn zài zhèlǐ dài chángqī.
我打算在这里待长期。
I plan to stay here for a long time.
Noun
long time
Tā xūyào duì zhè xiàng gōngzuò zuò chángqī guīhuà.
他需要对这项工作做长期规划。
He needs to make long-term plans for this job.