Improvisatory
a. 即席的
🗣️ 情景例句
It might be simpler and less expensive .
这样可能比较简单而且省钱。
He who is afraid of asking is ashamed of learning.
害怕问者耻于学。
the graphic record shows three waves arriving one after the other at short intervals.
曲线纪录就能显示出前后相间的这3种地震波。