拖后腿 (tuō hòu tuǐ)

"拖后腿 (Tuō hòu tuǐ)" literally means "to drag the hind leg." The phrase originates from the imagery of dragging something or someone backward, slowing down progress. It's used to describe someone who is holding others back or impeding progress, much like dragging down a team's efforts.

For example:

Rúguǒ nǐ bù nǔlì, jiù huì tuōhòutuǐ, yǐngxiǎng zhěnggè tuánduì de biǎoxiàn.
如果你不努力，就会拖后腿，影响整个团队的表现。
If you don't work hard, you will drag down the team's performance.

Source:eChineseLearning