"draw a sharp line" is grammatically correct and can be used in written English.
It means to clearly define or establish a boundary or distinction between two things. Example sentence: In order to avoid any confusion, we need to draw a sharp line between personal and professional relationships at work.
Science leads us to draw a sharp line between what is real and what is unreal.
You can't draw a sharp line between peace, security, development and human rights.
Opposition parties dislike a tough law planned by Mr Aznar that would draw a sharp line between legal and illegal newcomers.
It is extremely difficult to draw a sharp line between the deleterious effects of normal aging and the deleterious effects of the diseases of aging.
They automatically think of the employee's commitment to the company as open-ended, but draw a sharp line around the company's commitment to the employee.
That is why we sought to draw a sharp line between the democratic and nondemocratic worlds, in an effort to create clarity in human rights.
If he doesn't, then Europe and the United States need to draw a sharper line with Russia, abandon their cautious and graduated approach of the past several months, impose more meaningful costs and restructure relations with Russia for the foreseeable future.
But United States officials drew a sharp line at building new reactors for North Korea.
There was a great square shape to Mr. Rousteing's blazers and vests that drew a sharp line across the clavicles and shoulders.
Like most states, New Jersey has historically drawn a sharp line between the people who run the prisons and those who decide whether inmates should be released.
It draws a sharp line between sins committed by the church's "sons and daughters" and the church itself, which is "holy and immaculate".
