俚语学习之as clear as mud

as clear as mud这个习惯中的“clear”是“清楚”，“mud”是“泥巴”，这两个单词根本就是风马牛不相及，因为“泥巴”从来都是“浑浊肮脏”的，不可能是“干净”的。

那会不会是这个习语有问题？

as clear as mud

答案肯定是否定的，如果有问题的话老王就不会放在这让大家看了。

其实这个习语类似中文的反话，“像泥巴一样干净”，说白了就是“非常脏”、“非常浑浊”，因为没有泥巴是干净的，这个习语可以引申为“莫名其妙”、“难以理解”。例如：This doesn't make sense. It's as clear as mud.这说不通。简直是莫名其妙。

as..as...比较之外的意思

每日一题：

Regulators are likely to end what are, in effect, long-standing exemptions permitting pilots of small turboprop aircraft at small carriers to fly as much as 20 percent more hours per month than pilots at larger airlines fly, with the consequence that some carriers could be forced to hire additional pilots.

A. as much as 20 percent more hours per month than pilots at larger airlines fly, with the consequence that

B. as many as 20 percent more hours per month as pilots at larger airlines, and

C. more hours per month, as much as 20 percent, than pilots at larger airlines; consequently

D. as much as 20 percent more hours per month as larger airlines` pilots, so

E. as many as 20 percent more hours per month than pilots at larger airlines do, and consequently

正确答案  E

相关知识点：

as…as…..非比较的意思

相关考题：

Organized in 1966 by the Fish and Wildlife Service, the Breeding Bird Survey uses annual roadside counts along established routes for monitoring of population changes of as many as, or of more than 250 bird species, including 180 songbirds.

A. for monitoring of population changes of as many as, or of

B. to monitor population changes of as many, or

C. to monitor changes in the populations of

D. that monitors population changes of

E. that monitors changes in populations of as many as, or

正确答案  C