未筛过的

"Although the risk of bowel perforation is often cited as a major factor in the choice between colonoscopy and sigmoidoscopy for colorectal screening, good estimates of the absolute and relative risks of perforation are lacking," write Nicolle M.

利用Medicare的资料库找出1991 ~ 1998年间，65岁以上、未罹患癌症且至少接受过一次以上大肠镜检或直肠镜筛检的健保民众，根据这份资料算出这些民众在做完筛检后7天内发生肠穿孔的机会。

Rolled oats (oatmeal - uncooked, old fashioned - not instant. I don't like using oatmeal as it is difficult to sift out the worms).

轧燕麦（燕麦片-未煮过的，老式的-而不是瞬间，我不喜欢用燕麦片，因为这是很难筛出蠕虫）。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。