shè / jì / shī / zài / zuò / hǎi / bào / shí / tè / yì / bǎ / sì / gè / jiǎo / dōu / zuò / chéng / le / yuán / jiǎo

设计师在做海报时特意把四个角都做成了圆角。

The designer deliberately made all four corners rounded when creating the poster.