Jane is very mature for her age.

简年龄不大，却很成熟。

《牛津词典》

Fortunately, the AIX LVM is a very mature, stable and robust tool.

所幸的是，AIX LVM是一个非常成熟、稳定和强壮的工具。

youdao

She sounded very mature, she had a good presence, and she looks good.

她听起来非常成熟，台风很好，长得也漂亮。

youdao

So thermodynamics, based on these four laws now, requires an edifice, and it's a very mature science, and it requires that we define things carefully.

热力学是一座，建立在这四条定律上的大厦,它是一门非常成熟的科学，也要求我们在定义东西时非常小心。

麻省理工公开课 - 热力学与动力学课程节选

That's just an example of a cell that in its very mature or differentiated form is quite different from other cells inside the body.

以上就是一个,分化成熟的细胞,区别于体内其它细胞的范例

耶鲁公开课 - 生物医学工程探索课程节选

Mr Boyle is remembered at Bangor as a "very mature, very focused and down-to-earth student".

BBC: St David's Day: what might have been for Danny Boyle

Senator LINDSEY GRAHAM (Republican, South Carolina): Because, you know, India is a very mature country.

NPR: Congress Leery of India's Absence from Treaty

They opened their Six Nations account against Wales with an efficient, calculating performance, which was very mature.

BBC: Six Nations: Jeremy Guscott on Ireland v England