Palaeoptera
古翅类
🗣️ 情景例句
Spring is the season for romance.
春天是浪漫的季节。
To crawl
爬
After entering the narrow gap on the plateau, they climbed down the steep sides of the cave until they came to narrow corridor.
他们从高原上的窄缝进去，顺着笔直陡峭的洞壁往下爬。来到一条狭窄的走廊上。