officer n.军官,警官；公务员,政府官员；船长
英 [ˈɒfɪsə(r)]美 [ˈɑːfɪsər]
举例：
1.The health and safety officer will guide you through the safety procedures.
卫生安全官员将向你把安全规程解释一遍。
2.The police are working in conjunction with tax officers on the investigation.
警方正和税务官员协同进行调查。
3.The officer leading the investigation has been taken off the case.
主持调查此案的警员已被撤下。
optician n.眼科医生；配镜师
英 [ɒpˈtɪʃn]美 [ɑːpˈtɪʃn]
举例：
1.Some may need specialist treatment at the optician's.
有些人可能需要到眼镜店进行专业验光。
2.She does not want to be taken to an optician with the probable result of having to wear glasses
她不想被带去验光，因为结果可能是她必须配戴眼镜。
3.A dispensing optician supplies glasses, but doesn't test your eyes.
配镜师为你提供眼镜，但不检查眼睛
最真的poor
