单词：pioneer plant
pioneer plant的用法和样例：
例句
- It is found particularly in pioneer weed species and in ecosystems such as the tundra, where insect vectors are rare.研究发现这种现象主要存在于某些先锋植物物种和苔原生态系统中，因为那里传粉的昆虫很少。
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[00:00.00]yellow [00:00.86]黄色 [00:01.72]yes [00:02.66]是的 [00:03.60]you [00:04.45]你 [00:05.30]young [00:06.26]年轻的 [00:07.21]young pioneer [00:08.41]少年先锋队员 [00:09.61]your [00:10.51]你 [00:11.42]yours [00:12.51]你的 [00:13
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[00:00.00]off [00:00.97](走)开 [00:01.93]often [00:03.19]常常 [00:04.44]Oh dear! [00:05.79]天哪！ [00:07.13]only [00:08.48]仅仅 [00:09.82]open [00:11.42]打开 [00:13.01]orange [00:14.21]桔汁 [00:15.41]other [00:16.61]其他的 [00:17.82]o
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