Archibaid was a whale at fishing in his young days.
　　
（誤譯）阿奇比德年輕時(shí)捕魚(yú)捕到了一條鯨魚(yú)。
（正譯）阿奇比德年輕時(shí)擅長(zhǎng)捕魚(yú)。

a whale at 熱心于……的人，善于……的人

Our monitor is a regular whale at work.
我們的班長(zhǎng)是個(gè)一貫勤勤墾墾工作的人。

He is a whale at ping pong.
他是乒乓界的出眾人物。

其他擅長(zhǎng)說(shuō)法：

1. be good at

Be good at English, both oral and written.
良好的英語(yǔ)書(shū)寫(xiě)與表達(dá)能力。

A good listener must be good at asking questions.
一個(gè)好的聆聽(tīng)者應(yīng)該善于問(wèn)問(wèn)題。

Be positive and proactive; be good at learning and thinking.
樂(lè)觀(guān)的心態(tài)，積極向上，勤學(xué)好問(wèn)，善于思考；

2. be expert in

Be expert in education and publications.
對(duì)教育、出版均有研究。

I hope I will be an expert in this field.
我希望在未來(lái)成為這方面的專(zhuān)家。

He is said to be expert in English speech.
據(jù)說(shuō)，他擅長(zhǎng)用英語(yǔ)作演說(shuō)。

3. be skilled in

An army commander must be skilled in tactics.
一名軍事指揮官必須對(duì)戰(zhàn)術(shù)很老練。

writers must be skilled in the art of definition.
詞書(shū)編纂者必須精于給詞語(yǔ)下定義的技巧。

Dictionary writer must be skilled in the art of definition.
詞書(shū)編纂者必須精于給詞語(yǔ)下定義的技巧。