Dennis had recently begun a successful career conducting opera.是什么意思？

Dennis had recently begun a successful career conducting opera.

丹尼斯最近开始从事歌剧指挥的工作,并且非常成功。

Dennis

[体]真皮；

例句
Seeing his chance, Dennis moved in for the kill.
看到机会来了，丹尼斯开始采取行动。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

recently

adv. 最近，近来，不久以前，近日，新近；

例句
They recently failed to negotiate a mutually acceptable new contract.
他们最近未能谈成一个双方都满意的新合同。

begun

n. [人名] 贝根，[地名] [印度] 贝贡；v. 开始（begin的过去分词）；

例句
The women who worked in these mills had begun to agitate for better conditions.
在这些工厂里做工的妇女们开始抗议要求改善工作条件。

successful

adj. 成功的，如愿以偿的；

例句
...a successful advertising agency.
一家成功的广告代理公司

career

n. 生涯，职业，事业；vi. 全速前进，猛冲；

例句
...a second career which absorbed her more completely than her acting ever had.
比演艺生涯更让她投入的又一职业

conducting

v. 引导( conduct的现在分词 )，带领，控制，传

例句
He appeared hardly capable of conducting a coherent conversation...
他好像连话都说不清楚。

opera

n. 歌剧，歌剧艺术， 歌剧业，作品( opus的名词复数 )，

例句
His father was an actor in the Cantonese Opera Company...
他的父亲是粤剧团的演员。