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[ad]

abbr.廣告 (=advertisement) 
abbr.公元(=Anno Domini)

例句與用法：

Problems were solved on an ad hoc basis.

做了一些變通問題便解決了。

The actress often forgot her lines but was very good at ad libbing.

那個女演員常忘台詞，卻極擅長臨時拼湊。

I had forgotten to bring my notes and had to speak ad lib.

我忘記帶講稿了，只好臨時講幾句。

I don't want to go on working here ad infinitum.

我不願意永遠在這裡幹下去。

Having been together for more than60 years, Eric and Betty were regarded as the Darby ad Joan of he village.

埃裡克和貝蒂生活在一起60多年了，他們被認為是村裡一對幸福的老夫婦。

That's an interesting ad.

那是有趣的廣告。

Fished all day without a bite; an ad that got a few bites but no final sales.

一整天沒半條魚上鉤; 這則廣告吸引了一些人上鉤，但最後還是沒有賣出東西

I got four replies to my ad about the bicycle for sale.

已經收到了四份對我出售自行車廣告的回信。

英文解釋:

名詞 ad:

a public promotion of some product or service

同義詞：advertisement, advertizement, advertising, advertizing, advert

副詞 ad:

in the Christian era; used before dates after the supposed year Christ was born

同義詞：A.D., anno Domini