常見例句Construct "Square-Triangle Dissection of Dudeney". 一正三角形切割成四塊teachers aren't trained in teaching gifted children," says Dudeney. 沒(méi)有訓(xùn)練老師來(lái)教這些天才兒童，”達(dá)敦妮說(shuō)。 返回 Dudeney