can not help ; do not help
她非但没帮上忙，反而碍事。
She was more of a hindrance than a help.
《牛津词典》
说实在的，她没帮上忙，反而成了累赘。
To be honest, she was more of a hindrance than a help.
没帮上忙，真心希望你能原谅。
I do hope you forgive me for being unable to help.
youdao
应用推荐
模块上移
模块下移
不移动