You just don't want to go; that's all. 你就是不想去罢了。
My professional level is not high enough for the job,and I've just tried my best to do what I could. 我的业务水平不高,只是尽最大的努力去做罢了。
I wouldn't have minded his refusing,but he didn't even answer my letter. 他不肯也罢了,连个回信也不给。
Well,if he doesn't want to come,it can't be helped. 他不愿来也就罢了。
牛津高阶第八版
美国韦氏词典
Dictionary.com
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维基百科 (自由的百科全书)