为了维持健康，他每天都坚持锻炼。

Wèile wéichí jiànkāng, tā měitiān dōu jiānchí duànliàn.

To maintain his health, he keeps exercising every day.

在经济不稳定的时期，政府需要想办法维持社会秩序。

Zài jīngjì bù wěndìng de shíqī, zhèngfǔ xūyào xiǎng bànfǎ wéichí shèhuì zhìxù.

During times of economic instability, the government needs to find ways to maintain social order.

这家公司很难靠现在的收入维持正常运转。

Zhè jiā gōngsī hěn nán kào xiànzài de shōurù wéichí zhèngcháng yùnzhuǎn.

It is hard for this company to maintain normal operations with its current income.