huó / dòng / zhèng / shì / kāi / shǐ / de / tóu / tiān / gōng / zuò / rén / yuán / yǐ / jīng / bǎ / chǎng / dì / bù / zhì / hǎo / le

活动正式开始的头天，工作人员已经把场地布置好了。

The day before the event officially began, the staff had already set up the venue.