alvarezesCOCA²⁵⁴³³⁷⁺⁶ 基本例句 阿尔瓦雷斯；n.Alvarez人名；英、西、葡、瑞典阿尔瓦雷斯 Iridium is rare on Earth but common in space, and the Alvarezes proposed that a giant asteroid had hit the Earth, producing the sudden decline in species. 铱在地球上很稀有，但是在宇宙空间中却很常见。 Alvarez提出一个巨大的行星曾经撞击地球，造成了物种的突然减少。 yeeyan