______ : a problem or temporary failure when you are on the way to achieving something
举一反三
- something people say when they are not sure if something will be a problem ._________
- If your friend says no sweat when you ask him about something or ask him to do something, he means that it is not a problem or that it can be done quickly or easily.
- The present difficulties ______ from our failure to deal with the problem when it first arose.
- If you are worried the problem, you should do something about it.
- When you ______________ something, you make it.