transience
n. 稍纵即逝
例句
The third is the transience of all pioneers.
短暂性则是所有先锋者的第三个标志。
Transience can be seen in both short- and long-term memory.
易逝性在短时记忆和长时记忆过程中都会出现。
Because we cannot accept the truth of transience, we suffer.
我们无法接受瞬息万变这一真理,因此我们为之痛苦。