daftness

例句：

1. 1.He was so daft that he forgot his keys at home.
   他太愚蠢了，他把钥匙忘在家里了。
2. 2. The child was too daft to understand the lesson.
   那个孩子太愚蠢了，听不懂课。
3. 3.She was considered daft for her behavior in the party.
   她因为派对上的行为被认为是愚蠢的。