1 sentence

1. 他担心自己的技术水平会给整个项目拖后腿。

   tā dān​xīn zì​jǐ de jì​shù shuǐ​píng huì gěi zhěng​gè xiàng​mù tuō​hòu​tuǐ.

   He was worried that his skill level would hold the entire project back.

   Source: Dong Chinese Dictionary