Caving
n. 洞穴探险
✅ 同义词
🗣️ 情景例句
It's ten after six. We're late.
现在是六点十分。我们迟了。
What's the time by your watch?
你的表几点了？
But instruments far more delicate than that were needed if any really serious advance was to be made.
但是，如果要取得真正重大的进展，需要有比这种装置精细得多的仪器。