crawl before one walks
短语发音
AU
词形变化
crawled before one walked
crawling before one walks
crawls before one walks
三单
crawls before one walks
crawling before one walks
现在分词
crawled before one walked
过去式
crawled before one walked
过去分词
释义与例句
v.
-
1.
To learn the basics before doing something at a more advanced level.
习语