津津有味的英文：
do something with keen pleasure

参考例句：

Appetizing, palatable
津津有味

To taste with relish;savor.
品尝，欣赏津津有味地品尝;品味

They have been able to keep on cheerfully plotting their holocausts right into their senescence.
他们都还能津津有味地继续策划他们的大暴动，直至他们的垂暮之年。

In these books we are not only most agreeably entertained, but most usefully instructed.
这些书我们不但读起来津津有味，而且还从中得到许多好处。

with enormous gusto;Do sth. with zest or relish
津津有味

eat with zest
吃得津津有味

They fell to(eating)with great gusto.
他们开始津津有味地大吃起来.

I ate my lunch with gusto.
我津津有味地吃午饭。

Ralph had listened attentively to this judicious report
拉尔夫对这个有见识的报告听得津津有味。

Those children fell to with good appetite
那些孩子开始津津有味地吃起来。

something是什么意思：
pron. 某物；某事
n. 重要的人（或事物）；大致

It is not something ephemeral.
它不是朝生暮死的东西。

Know something of everything and everything of something
既要有一般常识,又要有专业知识

Know something of everything and everything of something.
通百艺而专一长。

keen是什么意思：
adj. 敏锐的；热心的；强烈的，渴望的；激烈的；锐利的

The competition for the first prize was keen.
争夺第一名的竞争很激烈。

My daughter is keen of hearing.
我的女儿听觉灵敏。

This knife is very keen.
这把小刀非常锋利。

pleasure是什么意思：
n. 愉快，快乐；娱乐；令人高兴的事物
v.（使）高兴；（使）满意

a beam of pleasure
一丝笑容.

They dissolved in pleasure.
他们快乐得神魂颠倒。

Never changes her mind at pleasure.(at pleasure:随意)
从不随意改变主意