Spelaeology
洞穴学
✅ 同义词
🗣️ 情景例句
Reading childern's literature is an excellent way for the beginning English speaker to improve.
对于刚刚开始学说英语的人，阅读儿童文学读物是个不错的方法。
No, I'm sorry, sir. We don't accept checks.
先生，对不起，我们不接受支票。
and then generalized the results of his many experiments into the famous law of free fall.
然后将多次实验结果概括成著名的自由落体定律的人。