第二个单词应该是accessible吧
accessible英音：[?k'ses?bl]美音：[?k's?s?b!]
形容词 a.
1.可(或易)接近的;可(或易)进入的
a town accessible by rail
有铁路通达的城镇
2.可(或易)得到的;可(或易)使用的[(+to)]
Medicine should not be kept where it is accessible to children.
药品不应放在儿童容易拿到的地方。
3.易受影响的,易感受的[(+to)]
He is not accessible to pity.
他不大有同情心。
4.易被理解的;受到赞赏的
Those are his most accessible stories.
available英音：[?'veil?bl]美音：[?'vel?b!]
形容词 a.
1.可用的,在手边的;可利用的[(+for/to)]
The swimming pool is available only in summer.
这个游泳池只在夏天开放。
2.可得到的,可买到的
Is there water available around here?
附近弄得到水吗?
TV sets are available in any department stores.
电视机在任何一家百货公司里都能买到。
3.有空的,可与之联系的
The principal is available now.
现在校长可以接见你。
4.有效的
This film ticket is no longer available.