Make a criticism [comment, suggestion] if you want! 有意见就提嘛!
He's not to blame. After all, it was the first time he'd done it. 这也不能怪他,头一回做嘛。
As for you, I don't think you have to go in person. 你嘛,就不用亲自去了。
牛津高阶第八版
美国韦氏词典
Dictionary.com
Free Dictionary
维基百科 (自由的百科全书)