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：
名词
观光
了解海关手续
1. 游览;观光;旅游If you go sightseeing or do some sightseeing, you travel around visiting the interesting places that tourists usually visit.
1. going about to look at places of interest
Synonym: rubber-necking
多通过句子记忆单词，而不是单独死记硬背。
