她总是主动帮助别人。
tā zǒngshì zhǔdòng bāngzhù biérén 。
She always takes the initiative to help others.
在工作中，主动思考很重要。
zài gōngzuò zhōng ， zhǔdòng sīkǎo hěn zhòngyào 。
It's important to think actively at work.
他主动请缨去做这个项目。
tā zhǔdòng qǐng yīng qù zuò zhègè xiàngmù 。
He took the initiative to volunteer for this project.