记者们不断追问，但发言人只是避而不答，拒绝透露任何细节。

The reporters kept asking, but the spokesperson just ___stonewalled and refused to share any details.

公司高层一直拒绝提供关键文件，试图阻挠审计进程。

The company executives are ___stonewalling the audit by withholding crucial documents.