她正在为下周的化装舞会缝制一套精美的礼服。
She is sewing an exquisite dress for next week's ___masquerade.
她伪装成清洁工混进了办公室。
She ___masqueraded as a cleaner to sneak into the office.
万圣节化装舞会上，人们穿着各种奇装异服参加舞会。
People wear all kinds of costumes to attend the Halloween ___masquerades.
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