1. After retiring from service, they will suffer from bone tissue hurt and osteoporosis in a degree. 在退役之后，这一人群都出现不同程度的骨组织伤痛与骨质疏松症。
2. Another factor that could affect the future of US space flight is a possible delay in retiring the space shuttle. 另个可能导致美国未来太空飞行计划延期的因素就是现有的航天飞机可能会延期退役。
3. Long-time columnist Robert Novak says he's retiring immediately, a week after being diagnosed with the brain tumor. 被诊断患有脑瘤一周后，长期担任专栏作家的罗伯特诺瓦科宣布他将马上退休。
英英解释
adj.
1. moving toward a position farther from the front
2. not arrogant or presuming
3. of a person who has held and relinquished a position or office
4. reluctant to draw attention to yourself
