第二天一早，他宣布说：“昨天晚上睡觉之前我想了好久关于这个小鸟的问题，一定是这么回事……”他开始滔滔不绝地讲解起来。

The next morning he announced, "I had thought about that bird for a long time before I went to bed and it must work this way..." he began a long explanation.

youdao

第二天一早，他宣布说：“昨天晚上睡觉之前我想了好久关于这个小鸟的问题，一定是这么回事……”他开始滔滔不绝地讲解起来。

The next morning he announced, "I had thought about that bird for a long time before I went to bed and it must work this way..." he began a long explanation.

youdao