Short sound waves bounce off even small objects.
短声波即使遇到小物体都会产生回音。
The elephant USES the "finger" to pick up small objects.
大象用这个“手指”拾起小物体。
He was even able to pick up small objects with a robotic arm.
他甚至能用机器人手臂拾起小的物体。
They were like the ant, which can see small objects but not large ones.
他们就像蚂蚁一样，只能看到小东西，却看不到大的。
They were like the ant, which can see small objects but not large ones.
他们就像蚂蚁一样，只能看到小东西，却看不到大的。
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