crackpotimpracticableimpracticalof the closetquixoticunpracticalunrealistic不切实际: not correspond to reality; u ...的: 4次方是 The fourth power of 2 i ...抱不切实际的想法: get ideas into one's hand不切实际的, 幻想的: unrealistic不切实际的观测值: wild observation下载手机词典可随时随地查词查翻译