统一码: U+8579
拼音: yōng wèng
* 〔～菜〕一年生草本植物，茎蔓生，中空，叶子长圆或心脏形，叶柄长，嫩茎、叶可做蔬菜。俗称"空心菜"
Ipomoea aquatica used as a vegetable
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