这些岛屿位于千岛群岛的南端。The islands lie at the southern end of the Kurile chain.设得兰群岛是水獭在不列颠群岛上最后的栖息地。Shetland is the last stronghold of otters in the British Isles.他的尸体在离加那利群岛不远的海上被发现。His body was found at sea in waters off the C...
A pattern of overlapping aggregations is usually found.通常可发现一种叠聚集现象.The atoms of the different chemical elements are different aggregations of atoms of the same kind.不同化学元素的原子是同类原子的不同聚合物.Determines whether level should b...