dà xíng / jiàn zhù / xiàng mù / dōu / xū yào / shǐ yòng / dà liàng / xíng gāng / lái / dā jiàn / kuàng jià

大型建筑项目都需要使用大量型钢来搭建框架。

Large construction projects all require large amounts of shaped steel to build frames.