facetiously

例句：

1. 1. He was facetiously joking about the weather when he arrived.
   他到达时，无端地开玩笑说天气。
2. 2. The teacher facedtiously asked the students to raise their hands.
   老师无端地要求学生们举手。
3. 3. She facedtiously answered the question, but it was not the answer she meant.
   她无端地回答了这个问题，但那不是她想要的答案。