柯林斯詞典yam /j?m/ (yams) 1. N-VAR A yam is a root vegetable like a potato with orange flesh that grows in tropical regions. 薯蕷; 山葯2. N-VAR Yams are the same as sweet potatoes. 同sweet potato[美國英語] 返回 yam劍橋詞典a potato-like root from a tropical climbing plant that can be eaten , or the plant it grows from 薯蕷，山葯 US a sweet potato 甘薯，白薯，紅薯，番薯（同 sweet potato） 返回 yam