Speleologists
(speleologist 的复数) n. 洞穴学家
🗣️ 情景例句
Pete wrote us and told us.
Pete写信告诉我们的。
The chemist is testing enzymes.
化学家在试验着酶。
this little 'o' indicated that the train only stopped for mail.
这个标记表示列车是为装邮件而停车。