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单语范例（未经PONS编辑处理）
It is then the opportunity for shade-tolerant species to become established under the protection of the pioneers.
en.wikipedia.org He was among the first to use fluoroscopy, and also pioneered new designs in medical equipment and devices.
en.wikipedia.org This school is a pioneer in using information and communication technologies.
en.wikipedia.org He was a pioneer in the use of portable microfilming equipment as a research tool.
en.wikipedia.org Kiva pioneered this concept in 2005, offering the first web-based service to publish individual loan profiles for funding.
en.wikipedia.org