维持

qǐng wéi chí jì lǜ

请维持纪律。

Please maintain discipline.

tiě lù yòng gōng kuǎn lái wéi chí

铁路用公款来维持。

The railway is maintained with public money.

wǒ yào wéi chí jiā tíng de hé xié

我要维持家庭的和谐。

I need to maintain harmony in the family.

xìng kuī tā àn zhōng wéi chí cái néng píng ān wú shì

幸亏他暗中维持，才能平安无事。

Thanks to his secret support, nothing has gone wrong.