Cách sử dụng
The word "assay" is usually used in science or in medicine to mean the testing or analysis of a substance, like a medicine or a chemical. It can also refer to the evaluation of an idea or a theory. For example, a scientist may assay a new drug to see if it is safe and effective, or a student may assay a new theory in their thesis to see how it holds up. It's a more technical term, so it's not commonly used in everyday conversation.