verb [vt. 及物动词] 驱使；推进（impel 的现在分词）
Consumption is the main impetus of impelling technological knowledge progress. 消费是促进技术进步的主要动力之一。
adjective [原级] 强有力的
Teaching assessment is the key joint of impelling the disposition education reformation. 教学评价是推进素质教育教学改革的关键环节。
