Momentariness
傾刻, 瞬息
??? 情景例句
That's a pretty good salary.
那待遇很好。
I'm afraid I have bad news for you.
恐怕我有壞消息要告訴您。
it is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
不僅能夠確定魚群的位置，而且可以根據魚群回聲的特點分辨出是鯡魚、鱈魚，這是人們所熟悉的其他魚。