英语网 英语单词
Heartwood的音标发音
Heartwood
英式发音：[hɑ:twud]
美式发音
(noun.) the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood.
埃斯特尔校对
(noun.) the older inactive central wood of a tree or woody plant; usually darker and denser than the surrounding sapwood.
埃斯特尔校对