興師動眾

Simplified: 兴师动众

xīngshīdòngzhòng ㄒㄧㄥ ㄕ ㄉㄨㄥˋ ㄓㄨㄥˋ

    • to muster large forces
    • to get a great number of people involved (in carrying out some task)

Character by character

Sources