单词：stem tuber
stem tuber的用法和样例：
例句
- This is Bulbing, tuber formation, elongation.这就是球茎块茎的形成，拔节。
- Stems unbranched, short, not forming a tuber below ground.不分枝的茎，短，在地下面不成立一块茎。
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英语单词荟萃