单词学习：gnarl 名词/动词
gnarl
/nɑːrl/
（名词）树节，木瘤；（动词）使扭曲，使成节
The old oak tree in the schoolyard has a prominent gnarl that 顾老师 often points to during biology class.
校园里的那棵老橡树上有一个明显的树节，顾老师在生物课上经常指着它讲解。
单词卡片
卡片已就绪
