Travel had not mellowed him appreciably.是什么意思？

Travel had not mellowed him appreciably.

游历并未使他明显成熟。

travel

n. 旅行，进行，移动，漫游；vi. 旅行，传送，前进，行进，[篮球]走步；vt. 经过，通过，游历；

例句
It is generally not advisable for expectant mothers to travel by air after the 28th week of pregnancy.
怀孕28周以后的准妈妈一般不宜乘坐飞机出行。

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。

not

adv. 不，[用以表示否定、否认、拒绝、禁止等]不是，几乎不，未必，没有[用于否定后面的词或短语]；

例句
It became very clear that the incident was not just an aberration, it was not just a single incident.
事实已经很清楚，这件事不是偶发的，它并不是一起孤立的事件。

mellowed

v. （使）成熟( mellow的过去式和过去分词 )，使色彩更加柔和，使酒更加醇香；

例句
When the children married and had children of their own, he mellowed a little...
等孩子们结了婚又有了自己的小孩以后，他变得平和了一些。

him

pron. (he的宾格)他；

例句
They said goodbye to him as he got aboard the train at Union Station.
当他在联合火车站登上火车之际，他们向他道别。

appreciably

adv. 相当大地，明显地；

例句
The index adds appreciably to the usefulness of the book.
索引明显地增加了这本书的实用价值.