That was a pretty brainless thing to do.那样做很愚蠢.Brainy students box , will always pick their teachers'brains, but the brainless ones never do that.聪明敏锐的学生会经常向他们的老师详细讨教, 但愚钝的就从来不会做这个.For instance, it appears the ances...
For instance, it appears the ancestor of brainless starfish and sea urchins had a brain.例如, 无脑海星和海胆的祖先似乎曾有大脑.Brainy students box , will always pick their teachers'brains, but the brainless ones never do that.聪明敏锐的学生...