Tom was utterly indiscreet, and could never keep a secret.是什么意思？

Tom was utterly indiscreet, and could never keep a secret.

汤姆言语很不谨慎，什么时候也别想他守住秘密。

Tom

n. 雄动物，雄猫；

例句
She heard Tom exchanging good-natured banter with Jane.
她听见汤姆和简互相打趣。

was

v. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

utterly

adv. 全然，完全地，彻底地，绝对的，十足地，十分；

例句
The place seemed to be utterly bereft of human life.
这个地方似乎根本没有人烟。

indiscreet

adj. 不慎重的，轻率的，不明智的，不警觉的；

例句
Hughes was barraged with phone calls from friends who were furious at the indiscreet disclosures.
休斯的电话快被他的朋友打爆了，就因为他一不小心说漏了嘴而惹恼了他们。

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。

could

aux. “can”的过去式，能够，打算，用于假设语气的条件句，用于虚拟语气的结论句；

例句
The regulations were relaxed and the prisoners could get out and about a bit.
规定有所放宽，犯人可以出去短暂放风。

never

adv. 从不，从来没有，一点也不，决不，<口>不会…吧，没有，不曾；

例句
The public never had faith in his ability to handle the job...
公众从来不相信他有能力胜任这一职位。

keep

vt. 保持，保留，遵守，阻止；vi. （食品）保持新，保持健康；n. 保持，保养，供养，抚养，生活，生计，饲料；牧草；

例句
The company say they're able to keep pricing competitive...
该公司说他们能够使定价保持竞争力。

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。