rana的用法和樣例：
例句
- The postembryonic development of Rana chensinensis which had been moved to South China were first studied in this paper.
摘要首次對中國林蛙在華南地區的胚胎後期發育進行觀察研究。 - For a long time, great attentions have been paid to Rana chensinensis for its important medicinal and economic value.
摘要中國林蛙具有重要的藥用價值與經濟價值，因而一直受到人們的重視。
