Improvisational
a. 即興的
??? 情景例句
and he's very unhappy about not working.
他對沒有工作感到怏怏不樂。
Man is a tool-using animal.
人是用器之獸。
The early climbers were looking for the easiest way to the top, because the summit was the prize they sought, especially if it and never been attained before.
早期登山者所尋找的是通往山頂的最方便的途徑，因為頂峰特別是前人未曾到過的頂峰 -- 才是他們尋求的目標。