I don't see why notspokenYES used to say ‘yes’ in answer to a request 当然可以,好啊〔用于表示答应某人的请求〕 ‘Can we go to the park?’ ‘I don’t see why not.’ “我们可以去公园吗?”“行啊。”
I don’t see why not• "Are you sure they'll let us walk on their land?" "I don't see why not."
→ I don’t see why not at see1(8)