别担心，这不是什么大麻烦。

Don't worry, it's not much ___trouble.

父母们经常很难找到欢迎小孩的餐厅。

Parents often have ___trouble finding restaurants that welcome young children.

这个表格非常复杂，我处理起来很麻烦。

The form was terribly complicated and I had a lot of ___trouble with it.