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[邵斌玄词汇宝典] 邵斌玄词汇宝典(MP3+文本) 第29期:recede 退去
As winter recedes, grizzly bears start to emerge from their dens. The wolves bark in alarm, but the bear is still drowsy from hibernation.2015-01-14 编辑：max
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[邵斌玄词汇宝典] 邵斌玄词汇宝典(MP3+文本) 第82期:phosphorus 磷
In early June, the tundra bursts into bloom. Pollen from flowers is a rich source of nitrogen and phosphorus, nutrients ingested by the calf through it's mother's milk supply.2015-03-22 编辑：max
