21.   Also frustrating are bugs that make some simple tasks impossible and the removal of the original camera controls.

22.   And researchers are hopeful that the hormone can help reverse the difficulty many post-menopausal women have remembering names and performing other simple tasks requiring short-term recall.

23.   And he stresses that he is not calling for a return to the days of Draconian work rules and the endless repetition of the same few, simple tasks.

24.   As the disease progresses, there may have difficulty in completing simple tasks.

25.   At this point, he often does the simple tasks, like fetching wrenches, tying cables and using his powerful arms to lock down nuts and bolts.

26.   A German biologist has found that when bumblebees learn the rules of a simple task through many repetitions, they have difficulty doing the job any other way.

27.   A simple task, like measuring a line four miles long, could take a few months because it was measured only a short distance at a time.

28.   Almost every morning, he struggled to get out of bed, to perform even such simple tasks as putting on his socks and shoes, Linda Schneider said.

29.   Building a stone wall is not a simple task, but it can be done well with planning and patience.

30.   But getting those people to testify was no simple task.

a. + task >>共 890
difficult 8.42%
daunting 6.34%
easy 6.14%
simple 2.53%
first 2.47%
main 2.40%
impossible 2.14%
tough 2.08%
formidable 1.56%
specific 1.33%
simple + n. >>共 1104
majority 3.85%
matter 1.91%
fact 1.71%
task 1.53%
answer 1.50%
thing 1.49%
question 1.38%
way 1.31%
reason 1.26%
explanation 1.21%
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