想不到他不费吹灰之力很快就解决了那些错综复杂的问题。用英语怎么说？

想不到他不费吹灰之力很快就解决了那些错综复杂的问题。

He had romped through the maze of questions with unexpected ease.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

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。

through

prep. 通过，穿过，经由，透过，凭借；adv. 从头到尾，彻底，自始至终；adj. （电话）接通，通话完毕，有洞的，直达的；

例句
The proposal was instantly voted through with two to one in favour, accompanied by enthusiastic applause...
在热烈的掌声中，提案以2比1的优势很快通过了表决。

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。

maze

n. 迷宫，迷惑，错综复杂，迷宫图；vt. 使困惑，使混乱，迷失；

例句
...a free helpline to guide businessmen through the maze of EU grants...
帮助商业人士处理纷繁复杂的欧盟拨款事宜的免费热线电话

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

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

questions

n. 询问，疑问，问题，问题( question的名词复数 )，疑问，怀疑，议题；v. 问（某人）问题( question的第三人称单数 )，对（某事物）表示[感到]怀疑；

例句
I had asked everyone to submit questions in advance of the meeting.
我已请每个人在会议之前提交问题。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

unexpected

adj. 想不到的，料不到的，意外的，忽然的，突然的；

例句
'You won't get away with this,' he said with unexpected bravado.
“这事你休想就这么过去，”他以出人意料的强横语气说道。

ease

n. 轻松，舒适，容易，安逸，不拘束，自在；vt. 解除痛苦，减轻，延缓，松弛；vi. 缓解，减少，轻松前进；

例句
It seems to ease all the aches and pains of a hectic and tiring day.
繁忙劳碌了一天所带来的周身酸痛似乎被一扫而空。