specialism
专业;专长
a business degree with a specialism in computing
专修计算机技术的商业学位
Dr Crane's specialism is tropical diseases.
克莱恩博士的研究领域是热带病。
acquaintance
认识的人;泛泛之交;熟人
Claire has a wide circle of friends and acquaintances.
克莱尔交游很广。
He's just a business acquaintance.
他只是业务上认识的人。
distress
使忧虑;使悲伤;使苦恼
It was clear that the letter had deeply distressed her.
这封信显然使她极为悲伤。
Don't distress yourself (= don't worry).
你别犯愁了。