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. get to know or become aware of, usually accidentally
e.g. I learned that she has two grown-up childrenI see that you have been promoted
Synonym: learnhearget wordget windpick upfind outdiscoversee
多通过句子记忆单词，而不是单独死记硬背。
