Fēi / jī / qǐ / fēi / qián / gōng / zuò / rén / yuán / jiǎn / chá / le / jī / yì / shàng / de / rǎo / liú / bǎn飞机起飞前,工作人员检查了机翼上的扰流板。Before takeoff, the staff inspected the spoilers on the wings.