easy的副词是什么意思

　　It's not easy to quit smoking.

　　戒烟不容易。

　　The shower is easy to install.

　　淋浴器易于安装。

　　It's not so easy as you'd think.

　　不像你想的那么容易。

　　I found the test relatively easy.

　　我觉得这次测试比较容易。

　　The problem is anything but easy.

　　这个问题一点也不简单。