[請益] TPO15 A WARM-BLOODED TURTLE (reading)
看板TOEFL_iBT (TOEFL_iBT托福)作者tom192180 (tom510558)時間14年前 (2011/08/31 21:52)推噓2(2推 0噓 1→)留言3則, 2人參與討論串1/1
其實不是要問題目，就重看的時候有一句卡住....跪
Leatherbacks do not have blubber, but they do have a reptilian equivalent:
thick,
oil-saturated skin, with a layer of fibrous, fatty tissue just beneath.
Insulation protects the leatherback everywhere but on its head and flippers.
Because the flippers are comparatively thin and blade like, they are the one
part of the leatherback that is likely to become chilled. There is not much
that the turtle can do about this without compromising the aerodynamic shape
of the flipper. The problem is that as blood flows through the turtle's
flippers, it risks losing enough heat to lower the animal's central body
temperature when it returns. The solution is to allow the flippers to cool
down without drawing heat away from the rest of the turtle's body. The
leatherback accomplishes this by arranging the blood vessels in the base of
as flipper into a countercurrent exchange system.
不定詞那段有點霧煞煞，如果是有顯風險會失去熱能，為什麼還是LOWER...
我想應該是我搞不懂，但實在看很久。麻煩大家了
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