Meaning of zhǔ dòng:
主动
to take the initiative
Tā zǒng shì hěn zhǔ dòng de bāng zhù bié rén.
他总是很主动地帮助别人。
He always takes the initiative to help others.
to do sth of one's own accord; spontaneous; active; opposite: passive 被動|被动[bei4 dong4]; drive (of gears and shafts etc)
Tā zǒng shì zhǔ dòng bāng zhù bié rén.
他总是主动帮助别人。
He always takes the initiative to help others.
Tā fēicháng zhǔ dòng de bāngzhù le tā.
他非常主动地帮助了她。
He very spontaneously helped her.
Tā zài huìyì shàng biǎoxiàn dé hěn zhǔdòng.
他在会议上表现得很主动。
He was very active in the meeting.
Tā zǒng shì hěn zhǔdòng de bāngzhù biérén.
他总是很主动地帮助别人。
He is always proactive in helping others.
Zhè tái jīqì de chǐlún yóu yī gè qiángdà de diànjī zhǔdòng qūdòng.
这台机器的齿轮由一个强大的电机主动驱动。
The gears of this machine are driven by a powerful motor.