抛砖引玉 (pāo zhuān yǐn yù)

lit. throw out a brick and get jade thrown back (idiom); fig. to attra

Character breakdown

Usage

我先说几句,算是抛砖引玉吧。

Let me say a few words first to get the ball rolling.

Wǒ xiān shuō jǐ jù, suàn shì pāozhuān yǐn yù ba.