1. Police have appealed for witnesses, but it seems the locals are keeping shtum.
警方已呼吁目击者出来作证,但看来当地人都三缄其口。

《牛津词典》

2. Police have appealed for witnesses, but it seems the locals are keeping shtum.
警方已呼吁目击者出来作证,但看来当地人都三缄其口。

《牛津词典》