Improvisational
a. 即兴的
🗣️ 情景例句
Hi.
嗨。
It is better to wear out than to rust out.
与其锈掉，不如用坏。
has spent his lifetime studying active volcanoes and deep caves in all parts of the world.
花了毕生的精力来研究世界各地的活火山和探洞。