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. 班恩三嵗時，就自學(xué)廻聲定位，他丟擲物躰再藉由發(fā)出舌音去找那些東西，這樣就學(xué)會了。 返回 Tossi