学习资料

[意       思]abbr. 公元
[例]  This tradition has been traced back to the sixth century AD.这一传统已被追溯到公元16世纪。
n. [口语] (=advertisement) 广告
[例]  That's an interesting ad.那是有趣的广告。

更多意思

abbr公元

n.[口语] (=advertisement) 广告

参考例句

1.	I don't want to go on working here ad infinitum.
	我不愿意永远在这里干下去。
2.	Problems were solved on an ad hoc basis.
	做了一些变通问题便解决了。
3.	Points of policy are decided ad hoc.
	政策的条款是临时决定的。
4.	I had forgotten to bring my notes and had to speak ad lib.
	我忘记带讲稿了,只好临时讲几句。
5.	We were told to help ourselves to the food ad lib.
	这些食物让我们随便吃。