solemnly

例句：

1. 1. The ceremony was solemnly conducted by the chief priest.
   仪式由首席牧师庄严地进行。
2. 2. He solemnly signed the document.
   他郑重地签署了文件。
3. 3.The parents solemnly watched their child leave for college.
   父母庄重地看着他们的孩子离开去上大学。