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. by spoken rather than written means
e.g. these stories were transmitted by word of mouth
Synonym: by word of mouth
2. (of drugs) through the mouth rather than through injectionby_mouth
e.g. he was administered the drug orally
多通过句子记忆单词，而不是单独死记硬背。
