| tell which is which | (idm) รู้ว่าใครเป็นใคร, See also: แยกความแตกต่างได้ |
| tell which is which | It's difficult to tell which is which for burnable and non-burnable rubbish as well, isn't it? |
| tell which is which | They are all so much alike that I can't tell which is which. |
| tell which is which | They are so alike that I can't tell which is which. |