Alf did this for over two years, and his fellow dustmen kept his secret.是什么意思？

Alf did this for over two years, and his fellow dustmen kept his secret.

两年多以来,艾尔弗一直这样, 他的同事也为他保守秘密.

Alf

abbr. advanced landing field 高级着陆场地，automatic letter facer 自动信件折叠机，auxiliary landing field 辅助着陆场地；

例句
He considered himself a crafty man — a man would have to get up very early in the morning to put one over on Alf Tandy.
他觉得自己太狡猾了——为了愚弄一下阿尔夫·坦迪通常得早上很早起床。

did

v. 做( do的过去式)，干，学习，研究；

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

this

pron. 这，这个，这事，这人，这时，下面所说的事；adj. 这，这个，刚过去的，即将到来的，今…，本…；adv. 这样地，就是这样，这么地；

例句
Victoria Falls has had above average levels of rainfall this year...
维多利亚瀑布今年的降雨量超过了平均水平。

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；

例句
I've come looking for a bit of advice.
我特来讨教。

over

prep. （表示方向）越过，（部份或全部覆盖）在…上面，由于，（表示论及）关于；adv. 结束，再，（倒）下，从一边至另一边；adj. 过去的，外面的，在上的，上级的；n. 额外，剩余，剩余（或多余）的量，剩余物；int. [电信学]报文完，请回复！；vt. 走过，跳过，[美国方言]从…恢复过来；

例句
...a protest over Aboriginal land rights.
为争取澳大利亚土著居民土地权的抗议

two

n. 两个，两个东西，两点钟，一对；adj. 两个的，我

例句
He has been absent from his desk for two weeks...
他已经有两个星期没有坐在办公桌前了。

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。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

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。

fellow

n. 同伴，男子，（大学的）研究员，（某些学院或大学的）董事；adj. 同伴的，同事的，同类的，同情况的；vt. 使…与另一个对等，使…与另一个匹

例句
His fellow officers regarded him with awe as some sort of genius...
同事们很敬畏他，视他如天才。

dustmen

n. 清洁工( dustman的名词复数 )；

例句
Alf did this for over two years, and his fellow dustmen kept his secret.
两年多以来,艾尔弗一直这样, 他的同事也为他保守秘密.

kept

adj. 受人资助控制的；v. （使）保持， （使）继续（ keep的过去式和过去分词 ），（食品）保持新鲜，保有，保存；

例句
They had given an absolute assurance that it would be kept secret.
他们信誓旦旦地保证将对此绝对保密。

secret

n. 秘密，机密，秘诀，奥秘；adj. 秘密的，机密的，神秘的，隐秘的；

例句
The Party is being degraded by its acceptance of secret donations...
该党因私下接受捐赠而蒙羞。