冰川正在缓慢地移动大量的冰，这些冰是在每年降雪量大于融化量的地区，在陆地上累积起来的。
Glaciers are slowly moving masses of ice that have accumulated on land in areas where more snowfalls during a year than melts.
树丛后面有什么东西正在移动。
但是这个海绵正在移动，实际上它是马尔代夫的一种海绵蜗牛——一种靠模仿海绵生存下来的软体动物。
But this sponge was moving, and it was in fact a Maldivian sponge-snail - a mollusc that survives by mimicking a sponge.
应用推荐