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1·American firms used to be allowed to amortise goodwill over many years.

过去美国的企业被允许将商誉在很多年内逐步摊销。

2·Engineers told Congress that shuttle missions might fly up to once a week, allowing NASA to amortise its development costs over lots of launches; in the event there have been only a handful each year.

工程师告知国会航天飞机任务周期可能为一周一次，这样NASA才有可能分期偿还其多次发射的开销；结果每年只有寥寥几次。