Backdown
n. 收回原来的声明[观点]
✅ 同义词
🗣️ 情景例句
I only buy used books.
我只买旧书。
To learn about words in dictionary
用词典学习单词
they aroused great interest at the time, they had important theoretical consequences,
这些观察在当时引起了人们极大的兴趣，具有重要的理论意义，