They had only a crude understanding of how limbs developed, because they did not know how to track the molecular changes taking place.
Doctors have found that malformed penises are among the most common birth defects in humans, but scientists still have only a crude understanding of how they occur.
Their strategy is no longer skewed by a crude understanding of the Palestine/Israel conflict, rather they focus on more bread-and-butter issues and a more nuanced understanding of the role of US foreign policy.
The puzzle can easily be generated using a crude understanding of numerical sameness.
But there's no consensus on how climate change will affect rice cultivation, says Kenneth Cassman, an agronomist at the University of Nebraska, Lincoln, because of "our relatively crude understanding" of how environmental changes affect the growth and yield of crops.
Literary critic George Edward Woodberry in 1885 thought the essay was based on a crude understanding of the science a student learns in school "rendered ridiculous" by absurdity and the density of his ignorance.
10) You've seen an adult man quietly trying to plug the aux cable from his iPod classic into the back of the mixer, but with a very crude understanding of how this works, he seems to be pressing a headphone against the mixer and another to his ear.
This could introduce a risk of a rather crude understanding of the linkage between environment and walking behaviour.
