leaf的意思是:n.叶叶片叶子有…状叶的有…片叶的(纸)页,张(尤指书的)页薄金属片活动桌板。v.翻…的页,匆匆翻阅。
例句: leaves on the plant had shrivelled up from lack of water.  
因为缺水,植物的叶子已经枯萎了。
2、The leaves of certain trees are poisonous to cattle.  
某些树的叶子会毒害牲畜。
3、When she leaves school, she wants to learn a trade.  
她毕业后想学一门手艺。