HSK 3
Tā zài zàochuánchǎng gōngzuò le èrshí nián.
He worked at a shipyard for twenty years.
HSK 7-9
Zhège chéngshì yǒu yōujiǔ de zàochuán lìshǐ.
This city has a long history of shipbuilding.
HSK 7-9
Zàochuányè shì gāi dìqū de zhīzhù chǎnyè.
The shipbuilding industry is a pillar of the local economy.
