tā / men / xiǎng / mán / tiān / guò / hǎi / bǎ / wèi / jīng / pī / zhǔn / de / huò / wù / yùn / guò / hǎi / guān

他们想瞒天过海，把未经批准的货物运过海关。

They tried to sneak the unauthorized goods through customs.