例句:Few of the office workers dared to approach the director about their working conditions.
职员中很少有人敢向主任提出工作条件方面的要求。
2.as to 至于，关于
例句:This gave me a clue as to the source of the problem.
这件事给我提供了找出问题根源的线索。
3.the ups and downs 起起落落
例句:The novel mirrors the ups and downs of the city.
这本小说反映了城市的兴衰。
4.looks at 研究
例句:He looks at all jimmy's teeth.
他检查了吉米所有的牙齿
