Cách sử dụng
The expression "at a time" refers to doing or focusing on one thing at a particular moment without any distraction or interference. For instance, when you say "I can only work on one project at a time," it means you can solely concentrate on one project without adding another task to it. It is commonly used to indicate that you are not willing to do or handle more than one thing simultaneously. You can use this expression in various situations, including work, study, or even leisure activities. So, when you want to emphasize that you can only do something one after the other without any distractions, use the expression "at a time."