diǎn / lǐ / kāi / shǐ / shí / xiào / zhǎng / fā / biǎo / le / rè / qíng / yáng / yì / de / xiàn / cí

典礼开始时，校长发表了热情洋溢的献词。

At the beginning of the ceremony, the principal delivered an enthusiastic congratulatory message.