这一集适合你吗?
B2 · 中高级
能看懂电视新闻就会觉得轻松
- 78% 的单词在 B1 或更简单的水平。
- 每分钟 172 词:自然语速,偏快。
- 整集共有 19 个较难的单词(B2 及以上)。
试一试:点任意单词
来自本集开头的真实句子,每个单词都标出了难度级别。
点一个单词,用你的语言查看释义。
这些单词你认识吗?
本集中 8 个较难的单词。点一个查看释义,然后标记一下。
标记几个单词,我们会告诉你这一集是否适合你的水平。
这一集适合你吗?
B2 · 中高级
能看懂电视新闻就会觉得轻松
- 78% 的单词在 B1 或更简单的水平。
- 每分钟 172 词:自然语速,偏快。
- 整集共有 19 个较难的单词(B2 及以上)。
文字稿
本集开头部分。完整文字稿在播放器中。
较难的单词(B2+)
Bees, butterflies, and bats are important for plant reproduction because they move pollen from one flower to another. But if a pollinator visits flowers from different species, how do plants make sure their pollen gets to a flower of the same species, a crucial step in making seeds?
One way is through differential pollen placement. This is when each plant species uses only a specific area of the pollinator's body to transport its pollen. By specializing their pollinator niche, that is, the way they use the pollinators as a
resource to move pollen, the plants can minimize the amount of pollen sent to the wrong species. In other words, if the pollen is a piece of mail and the pollinators are the mail carriers, the plants can address their mail instead of handing over a blank envelope and hoping it gets to the right recipient.
以上是开头部分。 本集其余部分(1 分钟)在播放器中:每个单词都可点击,附翻译、生词收藏和单词卡。
在播放器中继续由音频自动生成,可能存在错误。 音频版权归其发布者所有,并从其订阅源播放。版权所有者可申请删除 — 版权与删除政策
