Duroscope
硬度计
🗣️ 情景例句
You'll learn a lot.
会增长不少见识。
Think all you speak, but speak not all you think.
想想你所说的一切，不要全部说出你所想的。
Exploring really deep caves is not a task for the Sunday afternoon rambler.
探测非常深的洞穴不是那些在星期日下午漫步的人所能胜任的。