常見例句When Ben was 3, he began teaching himself echolocation, something he picked up by tossi ng objects and making clicking noises to find them. 班恩三歲時(shí)，就自學(xué)回聲定位，他丟擲物體再藉由發(fā)出舌音去找那些東西，這樣就學(xué)會(huì)了。 返回 Tossi