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：
不及物动词
1. 批评;攻击;中伤If someone snipes at you, they criticize you.
1. a gunshot from a concealed location
2. Old or New World straight-billed game bird of the sandpiper familyof marshy areassimilar to the woodcocks
多通过句子记忆单词，而不是单独死记硬背。
