常见例句用作形容词 (adj.)As the plates separate, hot molten mantle material flows up to fill the void.随着板块的分开，炽热的熔融地幔物质向上流动，以填充空隙。But black upward mobility consists largely of people from poor families moving up.但是黑人在社会阶层上的向上流动大多都限于摆脱贫困的状态。 返回 flow-up