"poor grade" is a correct and usable phrase in written English.
You can use it to talk about a grade that was below average. For example, "I was disappointed in my poor grade on the math test."
Her response when a teacher sent one of her children home with a poor grade?
I know what I did about a poor grade as a student.
"My own state," said Mr. Hunt, who is completing his fourth term, "gets a very poor grade on college participation".
One poor grade comes from the foreign-policy "scorecard" issued by the European Council on Foreign Relations.
Even with a poor grade, or none, they can go on to further study at A-level.
Both factors, along with the poor grade of American diesel, contribute to dirtier emissions.
"But often it was being mixed with North American stuff or poor-grade caviar".
Treatment of poor-grade subarachnoid haemorrhage remains controversial.
This is a prospective observational study including 39 consecutive poor-grade SAH patients with multimodal neuromonitoring.
(1) Only poor-grade aSAH patients observed at a single center are represented in this study.
Diffusion-weighted imaging may predict functional outcome after poor-grade SAH [ 84, 85].
