'abrupt at' is not a grammatically correct phrase.
You could use the phrase 'abruptly' to mean quickly and without warning. Example sentence: He abruptly ended the call before I could finish asking my question.
"She was a little negative; she was abrupt at times," said a neighbor, Bill Matthews, who has lived next door since the late 1980s.
The going is rocky and abrupt at the start, yet rewards the fall climber with great patches of pale blue New York aster and late-season goldenrod.
Well, I say, you can be pretty abrupt – at Blackheath station, she shouted out after me that I was a "patronising git" … She laughs.
The barrier is found to be very abrupt at the top of the metal due to the charge being mostly on the surface [27 31].
There are a few gripes about the powertrain: the rev limiter was very abrupt at about 6000 RPM, annoying when paddle shifting, and certainly can be worse with a manual.
In this paper, Phasor Estimation Error (PEE) is employed as a quantity with high abrupt at fault initiation that helps the proposed method in determining the location of second pair of concentric PSB.
Na2+He n shows a local maximum at n=2 and an abrupt drop at n=6.
In the untreated group, all three lines exhibited a growth peak at 144 h, followed by an abrupt drop at 192 h, indicating nutrient deprivation and culture confluence.
This is earlier than the national recommendation at the time of the study of abrupt cessation at four months [ 5].
Lowering of the water table at around 11100 10800 cal yr BP was probably connected with abrupt warming at ca. 11000 cal BP.
The lane comes to an abrupt end at Mr. Buchholtz's converted garage.
