美文网首页ScalersTalk第八轮《新概念》朗读持续力训练
Bella的Scalers-talk第四期新概念朗读持续力训练D

Bella的Scalers-talk第四期新概念朗读持续力训练D

作者: 幸福花开四叶草 | 来源:发表于2019-07-13 22:05 被阅读1次

任务配置:L0+L4

001任务L0

Lesson 20-3 Snake poison

Vipers (adders) and rattlesnakes manufacture the blood poison, which is known as haemolytic. Both poisons are unpleasant, but by far the more unpleasant is the blood poison. It is said that the nerve poison is the more primitive of the two, that the blood poison is, so to speak, a newer product from an improved formula. Be that as it may, the nerve poison does its business with man far more quickly than the blood poison. This, however, means nothing. Snakes did not acquire their poison for use against man but for use against prey such as rats and mice, and the effects on these of viperine poison is almost immediate.

002任务L4

朗读新概念四册lesson20-3

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