同根派生 land mass相关词英汉例句用作名词 (n.)Antarctica is an actual land mass.确切地说，它是一个大陆块。Thus mountains are large isolated land masses that project conspicuously above their surroundings.因此，山脉是明显突出于其周围环境之上的庞大孤零的大陆块。land mass更多例句