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：
1. kept in good condition
Synonym: kept up(p)well-kept
2. continued in your keeping or use or memory
e.g. in...the retained pattern of dancers and guests remembered
Synonym: retained
多通过句子记忆单词，而不是单独死记硬背。
