mask

每个人都戴着精美的面具去参加化装舞会。

Everyone wore an elaborate ___mask to the masquerade ball.

她戴着一个精美的威尼斯面具去参加化装舞会。

She wore a beautiful Venetian ___mask to the costume party.

窃贼们在抢劫过程中使用面具来隐藏身份。

The thieves used a ___mask to hide their identities during the robbery.