4周搞定2000+托福核心词
encounter = en(进入) + counter(相反) = 在对面→遭遇
currency = curr(流动) + ency(表名词) = 流动的钱财→货币
current = curr(流动) + ent(…的) = 流动的→当前的，流通的
nutrient = nutri(营养) + ent(表物体) = 营养物
accident = ac(加强) + cid(落下) + ent(表物体) = 突然落下→事故
反向流动→逆流
countercurrent
常考释义
Hatchlings are simply too small to conserve body heat, even with insulation and countercurrent exchange systems.
刚孵化的棱皮龟太小，即使有绝缘层和逆流交换系统也不能保存体温。
来源于：阅读OFFICIAL15 P1n. 逆流；逆电流
The influences of column diameter and height on the countercurrent flotation process were discussed, and the new concepts of choked air bubbles and area load were put forward.
论述了柱径与柱高对逆流浮选柱浮选过程的影响，提出了气阻、面积负荷的概念。
Hatchlings are simply too small to conserve body heat, even with insulation and countercurrent exchange systems.
刚孵化的棱皮龟太小，即使有绝缘层和逆流交换系统也不能保存体温。
来源于：阅读OFFICIAL15 P1In a countercurrent exchange system, the blood vessels carrying cooled blood from the flippers run close enough to the blood vessels carrying warm blood from the body to pick up some heat from the warmer blood vessels; thus, the heat is transferred from the outgoing to the ingoing vessels before it reaches the flipper itself.
在逆流交换系统中，血管将鳍部冷却的血液与身体其他部位温热的血液进行交换。因此，热量在到达鳍部前就通过流入的血液和流出的血液完成了热量转移。
来源于：阅读OFFICIAL15 P1While the warm-water countercurrent usually lasts for two months or less, there are occasions when the disruption to the normal flow lasts for many months.
温暖的逆流通常会持续2个月或更短，但正常的洋流中断几个月的情况也时有发生。
来源于：阅读OFFICIAL43 P3Every year during the months of December and January, a weak, warm countercurrent replaces the normally cold coastal waters.
每年十二月和次年一月之间，一股微弱的、温暖的逆流取代了通常寒冷的沿海水域。
来源于：阅读OFFICIAL43 P3adv. 相反地
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