我逐渐明白了他们想要干什么。用英语怎么说？

我逐渐明白了他们想要干什么。

Bit by bit I began to understand what they were trying to do.

bit

n. 一点，一块，少量，少许，一会儿，一转眼，[计] 比特（二进位制信息单位）；adj. 很小的，微不足道的；adv. [口语]相当，有点儿，或多或少，多少[a bit to的省略]；vt. 给（马）上嚼子，上衔铁，抑制，制约；v. 咬，叮( bite的过去式)，刺痛，咬饵，有咬（或叮）的习性；

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

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

began

v. 开始( begin的过去式 )，着手，创始，创办；

例句
He began comically ad-libbing a script...
他即兴调侃起了一段剧本。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

understand

vt.& vi. 懂，理解；vt. 了解，默认，听说，领会；

例句
Another accusation levelled at the Minister is that he does not understand ordinary people...
另一个矛头则直指部长不懂得体恤百姓。

what

pron. （用以询问某人或某事物的词）什么，多少，…的事物；adj. …的（事物或人）；adv. （用于感叹句中）；int. （用以表示不相信或惊奇），（用以表示未听清楚对方说的话）；

例句
How big is the abyss between what you think you are and what you actually are?
你对自己的认识和真实的你之间差别到底有多大？

they

pron. 他/她/它们，人们，大家，政府，当局，她们；

例句
The storms had abated by the time they rounded Cape Horn.
他们绕过合恩角时，暴风雨已经减弱。

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。

trying

adj. 令人难于忍受的，难堪的，令人厌烦的；v. 试图( try的现在分词)，试验，尝试，审讯；

例句
Caroline was trying on one outfit after another.
卡罗琳一套接一套地试穿衣服。

do

aux. 构成疑问句和否定句，代替动词，用于加强语气；vt. 做，干，进行，从事；vi. 表现，进展，引起，行过；n. 社交聚会，社交活动，宴会；

例句
Rachel was going to do something about Jacob...
蕾切尔将对雅各布有所行动。