Spelaeology
洞穴学
✅ 同义词
🗣️ 情景例句
I have a lost dog I'd like to bring to you.
我这儿有一只失散的狗，我想送来给你们。
I'm afraid you will catch a cold.
我怕你会感染到感冒。
I don't know. One, I think.
不知道，我想一岁。