I have kept birds for some 30 years.

我养鸟大约有三十年了。

《柯林斯英汉双解大词典》

In the 10 years I raced in Europe, 30 drivers were killed.

我在欧洲参赛的10年间，有30名车手身亡。

《柯林斯英汉双解大词典》

By the time I was 30, we had three adorable children.

到我30岁时，我们有了3个非常可爱的孩子。

《柯林斯英汉双解大词典》

"Among these three thousand teachers I can assure you almost 25 to 30 percent are former Khmer Rouge themselves.

VOA: standard.2010.04.19

And, I will have office hours today 30 starting at about 3:30 to 4:30 if you want to see me.

另外你今天如果想来见过的的话,我的办公时间是从3：30到4：

麻省理工公开课 - 固态化学导论课程节选

I thought I still have to work for another 30, 40 years. I need to do something else.

我原本想，我还必须工作三四十年。但我需要做点别的事情。

怡人的的汉普斯特德 - SpeakingMax英语口语达人

When I was 30 I told my GP about it and he referred me for counselling which was the best move I ever made - it really helped me to achieve perspective and make peace with myself and with my past.

BBC: Are there women paedophiles?

After starting a burn camp in San Diego when I was 30, I couldn't tell the children to face their fears jumping off the diving board when I feared fire.

CNN: 'They call me burnt toast'

When I hear 30% declines, I think about Fonzie jumping the shark.

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