huó / dòng / kāi / shǐ / qián / gōng / zuò / rén / yuán / yǐ / jīng / zhǔn / bèi / hǎo / le / zú / gòu / de / gōng / yìng / pǐn活动开始前,工作人员已经准备好了足够的供应品。Before the event began, the staff had prepared enough supplies.