1. They grow, they bulge, they stretch and sometimes they even painfully pull. 它们成长、膨胀、伸展，有时候它们甚至费力地拉伸。
2. Only galaxies with a spherical bulge—like component appear to accommodate supermassive black holes. 只有拥有球形膨胀物质的星系才可能容纳超大质量的黑洞。
3. After the war there was a bulge in the birth rate. 战后出生率一度激增。
4. Three very large volcanoes are found on the Tharsis bulge, an enormous geologic area near Mars's equator. 在塔尔西斯高原上发现了三座非常大的火山。塔尔西斯高原是火星赤道附近一片广阔的地质区域。
5. Most of the largest volcanoes are associated with the Tharsis bulge, but many smaller ones are found in the northern plains. 大多数最大的火山都与塔尔西斯凸起有关，但在北部平原上发现了许多较小的火山。
