His efforts, the Duke recollected many years later, were distinctly half-hearted.是什么意思？

His efforts, the Duke recollected many years later, were distinctly half-hearted.

据公爵许多年之后的回忆，他当时明显只是敷衍了事。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

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

efforts

n. 努力( effort的名词复数 )，气力，努力的结果，努力（或艰难尝试）的成果；

例句
They talked modestly of their valiant efforts to keep the tanker afloat...
他们说起自己设法使油轮漂浮的英勇之举时非常谦虚。

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

duke

n. 公爵，君主，<俚>(pl.)拳头，[植]公爵樱桃；vi. 战斗；

例句
I crammed on my cap again, helped the Duke up and tried to dust him off.
我重新戴上帽子，扶公爵起身并掸去他身上的土。

recollected

adj. 冷静的，镇定的，被回忆起的，沉思默想的；v. 记起，想起( recollect的过去式和过去分词 )；

例句
Ramona spoke with warmth when she recollected the doctor who used to be at the county hospital...
拉蒙纳回忆起曾在乡村医院工作的那位医生时，言语中透着温情。

many

adj. 许多，多的；pron. （与复数动词连用）大多数人；

例句
There are many people who still find the act of abortion abhorrent.
仍有很多人对堕胎行为表示厌恶。

years

n. 年( year的名词复数 )，年纪，一年的期间，某年级的学生；

例句
His wife was sentenced to seven years imprisonment for aiding and abetting him...
他的妻子作为他的从犯被判入狱7年。

later

adv. 较晚地，以后，过后，后来，随后；adj. 后来的，以后的，接近末期的，晚年的；

例句
Eleanor would later blame her mother-in-law for her husband's frequent absences.
埃莉诺过后会因丈夫经常不在家而责怪婆婆。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

distinctly

adv. 明显地，无疑地，确实地，逼真；

例句
The spectacle of the former naval officers washing their dirty linen in public was distinctly embarrassing...
前海军官员们自揭伤疤的做法显然非常令人尴尬。