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. （公司） 有担保的A bonded company has entered into a legal agreement which offers its customers some protection if the company does not fulfil its contract with them.
多通过句子记忆单词，而不是单独死记硬背。
