lì / shǐ / kè / shàng / lǎo / shī / jiǎng / le / hǎi / jìn / duì / yán / hǎi / jū / mín / shēng / huó / de / yǐng / xiǎng历史课上,老师讲了海禁对沿海居民生活的影响。In history class, the teacher discussed how the maritime ban affected the lives of coastal residents.