点击下方单词,选择对的这个单词
点击下面链接下载与本句相关的学习资源，包括PDF教材和音频练习，方便课后复习：
形容词
名词
1. 一年一次的；每年的Annual events happen once every year.
1. a reference book that is published regularly once every year
Synonym: yearlyyearbook
2. (botany) a plant that completes its entire life cycle within the space of a year
多通过句子记忆单词，而不是单独死记硬背。
