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general::
Phrase(s): draw a line between something and something else [and] draw the line between something and something else
Fig. to separate two things; to distinguish or differentiate between two things. (Also with the.) • I draw a line between just bumping into people and actually striking them. • It’s very hard to draw a line between slamming a door and just closing it loudly.
McGrawhill's American Idioms And Phrasal Verbs