commenter，critic，reviewer ；

[例句] 他是个苛刻的批评家，但却是个非常善良的人。 He was a stern critic but an extremely kindly man.

[例句] 批评家们抨击他的员工年纪太轻，缺乏经验。 Critics attacked the youth and inexperience of his staff.

egghead，theoretician，theorist，ideologue ；

[例句] 一如大多数理论家般，他想法古怪，行事出人意表，竟对实验得来的证据置之不理。 He is, like most theorists, out there in left field, ignoring the experimental evidence.

[例句] 专攻恒星内部的理论家们都想改行去搞更能引起争议的问题. Theorists specializing in stellar interiors were turning to more challenging problems.

housekeeper，stewardess ；

[例句] 你最好按铃叫女管家再拿点肥皂来. You'd better ring for the housekeeper to bring more soap.

[例句] 我想,那里现在大概有一位胳膊粗壮的女管家了吧. I suppose there is some matron with beefy forearms.

inventor，inventress ；

[例句] 专利使用费让这位发明家得以再次立足于商界。 The royalties enabled the inventor to re-establish himself in business.

[例句] 爱迪生很年轻的时候就获得了发明家的声誉. Edison won his spurs as an inventor while rather young.

[医]Singer，singer ；

[例句] 这位歌唱家以前从未在纽约演唱过. The singer had never performed in New York before.

[例句] 歌唱家的声音仍萦绕在我耳边. The voice of the singer still rings in my ears.

seer ；

[例句] 一位预言家预言那个王国将要灭亡. A prophet made a prophecy that the kingdom would fall.

[例句] 女预言家预言胜利. The sibyl prophesied victory.

philanthropist，charitarian ；

[例句] 这所大学的创建人是位腰缠万贯的慈善家. The university was founded by a millionaire philanthropist.

[例句] 那个守财奴被说成是个慈善家. The miser was puffed as a philanthropist.

woman writer，authoress，a woman of letters ；

[例句] 我是为数不多的既获得财富又享有国际知名度的年轻女作家之一。 I am one of the few young women who has made it as a writer financially and internationally.

[例句] 萧红是一位才情出众的女作家. An outstanding woman writer, she began her creative activity in 1933.

housefly ；

[例句] 目的确定家蝇幼虫匀浆液的抗病毒作用. Objective To define the antiviral activity of Musca domestica larva homogenate.

[例句] 方法: 采用点滴法测定家蝇对杀虫剂的半数致死量. Methods: We measure the LD of flies on insecticides standard drop way.

babby，moggy ；

[例句] 但Stoop并不想使自己成为一只家猫. But Stoop was not going to let himself be just an apartment cat.

[例句] 呼噜声是家猫所特有的发音特征. Purring is a unique vocal feature in the domestic cat.

explorer ；

[例句] 南极探险家斯科特是位赫赫有名的民族英雄。 Scott of the Antarctic was a national hero of mythic proportions.

[例句] 我敬佩那些为发现新大陆而外出的探险家们. I admire those explorers who ventured forth to explore new lands.

agronomist，agriculturalist ；

[例句] 那位农学家建议在干涸的河床上种水稻. The agronomist suggested growing rice on the dried river bed.

[例句] 男孩一心想成为农学家. The boy aims at becoming an agriculturist.

alpinist，mountaineer ；

[例句] 提尔曼是个著名的探险家, 登山家, 水手和作家. Tilman was a famous explorer, mountaineer, sailor and writer.

[例句] 这个登山家有很多探险故事. The mountaineer has many stories of expeditions.

analyst ；

[例句] 一些分析家认为，他的这一政治举措很高明。 Some analysts believe he has made a canny political manoeuvre.

[例句] 很多分析家认为美元走势坚挺。 Many analysts think the dollar is on an uptrend.

astrologer，magus，astrologian，astrologist ；

[例句] 任何善于运算的人都可以成为占星家。 Anyone can be an astrologer as long as they are mathematically minded.

[例句] 让占星家为你提供定期的建议和辅导. Allow your astrologer to provide you with regular counseling and coaching.

bibliophile ；

[例句] 约瑟夫·史密斯是个如饥似渴的藏书家。 Joseph Smith was a voracious book collector.

[例句] 他可说是位藏书家. He's something of a book collector.

khansamah，butler ；

[例句] 每次都是男管家把餐具摆好。 The butler always laid the table.

[例句] 男管家轻轻咳了一下,示意他已到场. The butler gave a little cough to announce his presence.

caricaturist，cartoonist，distortionist ；

[例句] 漫画家们总是把他画得变形了。 His size was persistently distorted by the cartoonists.

[例句] 政客们通常是漫画家所讽刺的对象。 Politicians were always considered fair game by cartoonists.

potter，ceramist，keramist ；

[例句] 两地作品由《陶艺家通讯》出专册发表. All the work will be published by Chinese Potters Newsletter.

[例句] 陶艺家在两地的创作作品可按适当比例取回. Works being done can be owned by the at a certain ratio discussed with the sponsors.

chemist，[医] chemist，chemic ；

[例句] 化学家能把一种药物的各种成分分解出来. A chemist can separate a medicine into its components.

[例句] 化学家用电解法把水还原为氢. The chemist reduced water by electrolysis.