欢笑能持续好长一段时间，而眼泪不过瞬时即过。
And a smile will last long long time, but a tear just a little while.
可是他的到来，使我原本快乐幸福的美好生活瞬时间破灭。
His coming, however, that I had happiness in a sudden burst of a better life.
稳态法比较精确，但比瞬时法需要更多的时间。
Steady state methods are more accurate but require more time than transient methods.
答：所谓瞬时性，依然含有时间的概念。
Lester: And the instantaneity, - the instant also has the concept of time in it.
答：所谓瞬时性，依然含有时间的概念。
Lester: And the instantaneity, - the instant also has the concept of time in it.
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