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
1.
2. 梯级;横档The rungs on a ladder are the wooden or metal bars that form the steps.
3. (事业、组织、进程中的)级别，等级，地位If you reach a particular rung in your career, in an organization, or in a process, you reach that level in it.
1. one of the crosspieces that form the steps of a ladder
Synonym: rundlespoke
2. a crosspiece between the legs of a chair
Synonym: roundstave
多通过句子记忆单词，而不是单独死记硬背。
